CN109701703A - Construction waste crushing and screening device and its screening technique - Google Patents
Construction waste crushing and screening device and its screening technique Download PDFInfo
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- CN109701703A CN109701703A CN201910060892.7A CN201910060892A CN109701703A CN 109701703 A CN109701703 A CN 109701703A CN 201910060892 A CN201910060892 A CN 201910060892A CN 109701703 A CN109701703 A CN 109701703A
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- construction waste
- screen
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- screen box
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/58—Construction or demolition [C&D] waste
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- Crushing And Pulverization Processes (AREA)
- Disintegrating Or Milling (AREA)
Abstract
The present invention provides a kind of construction waste crushing and screening device and its screening techniques, comprising: pedestal is provided with support rod on the pedestal；Crush box receives the construction waste and crushes the construction waste, and the crush box is set to above the pedestal, and the crush box is fixed with the support rod；First screen box, top is connected to the bottom of the crush box to be arranged to receive the construction waste from the crush box, the bottom of first screen box has a bottom plate, the bottom plate is equipped with screening plate and horizontally rotates on the bottom plate, and construction waste, which is screened through the screening plate from the bottom plate, to flow out；Second screen box, top is connected to first screen box, filter screen is equipped in second screen box to screen the construction waste from first screen box, construction waste after being screened by the filter screen is delivered in collecting tank by second screen box, and the collecting tank is set on the pedestal.Apparatus of the present invention good crushing effect, work efficiency is high.
Description
Technical field
The present invention relates to technical field of building construction, a kind of construction waste crushing and screening device and its sieve are related in particular to
Choosing method.
Background technique
With the progress of society and the development of science and technology, building is more and more, while in architectural process, construction waste
It is more and more.Construction waste refer to during all kinds of buildings of construction caused by dregs, spoir, rejected material, remaining mud and other
Waste；These construction wastes are itself no any help for building, but during construction
The substance of generation can reach ideal Engineering Project Construction so needing to perform corresponding processing in this way, and part is built useless
Material type is larger, needs to carry out pulverization process to it before shipping, construction waste is ground into small particles material, so as to convenient
It is transported and is stored on ground.Currently, the usual crushing effect of grinding device is bad, needing to recycle crushing, working efficiency reduces,
And it needs to stop to be added waste material in screening process and is screened, so that work also due to accumulation is so that screening is insufficient
Make efficiency reduction；And the small particle construction waste not screened sufficiently may be adulterated in big partial size construction waste, influence screening effect
Fruit.
Summary of the invention
In view of the foregoing, the present invention provides a kind of construction waste crushing and screening device and its screening technique, solves existing
Grinding device crushing effect it is bad, it is low to need to recycle crushing, working efficiency, and since waste from stacking causes in screening process
It screens insufficient, needs to stop that waste material the technical issues of being screened, further decreasing working efficiency is added.
To achieve the above object, the technical solution adopted by the present invention is that: a kind of construction waste crushing and screening device is provided, wrap
It includes:
Crush box receives the construction waste and crushes the construction waste, and the crush box is set on the pedestal
Side, the crush box are fixed with the support rod；
First screen box, it is useless to receive the building from the crush box that top is connected to setting with the bottom of the crush box
Material, the bottom of first screen box have a bottom plate, the first discharge port are offered on the bottom plate, and the bottom plate is equipped with
Screening plate, the screening plate is driven by first motor to horizontally rotate on the bottom plate, and the screening plate is equipped with screen holes,
The screen holes are connected to first discharge port, and the construction waste on the screening plate goes out from the screen holes and described first
Material mouth outflow；
Second screen box, top are connected to the first discharge port of first screen box, are equipped in second screen box
Filter screen is to screen the construction waste from first screen box, after second screen box will be screened by the filter screen
Construction waste be delivered in collecting tank, the collecting tank be set to the pedestal on.
In the embodiment of the present invention, the crush box is in back taper, and the two sides of the crush box are respectively equipped with the second motor, respectively
The output shaft of second motor is respectively and fixedly connected with the Disintegrating knife for crushing the construction waste, on each output shaft
The Disintegrating knife is staggered in the crushing box.
In the embodiment of the present invention, axis hole, the output shaft of the first motor are offered on the bottom plate of first screening plate
It is drivingly connected across the axis hole and the screening plate.
In the embodiment of the present invention, the first vibrator is connected on the cabinet of first screen box to enable first screening
Case vibration.
In the embodiment of the present invention, a sliding block is arranged on the support rod, between the sliding block and first screen box
It is connected with cross bar, the cross bar receives the vibration force of first vibrator and is transferred to the sliding block, and the sliding block is along institute
State support rod upper and lower displacement.
In the embodiment of the present invention, damping spring, one end of the damping spring and the cunning are arranged on the support rod
Block is fixed, and the other end of the damping spring is equipped with baffle, and the baffle is fixed with the support rod.
In the embodiment of the present invention, connected between the top and the crush box of first screen box by the first telescoping tube
Logical, the bottom of first screen box is connected to the top of second screen box by the second telescoping tube, and described second is flexible
The quantity of pipe is two, and the quantity of second screen box is two.
In the embodiment of the present invention, the opposite sides of the filter screen is respectively fixed with elastic telescopic component, and the elasticity is stretched
Contracting component is erected in second screen box, and the bottom of the filter screen is equipped with the second vibrator to enable the filter screen in institute
It states under the action of the second vibrator along the elastic telescopic component upper and lower displacement.
In the embodiment of the present invention, the elastic telescopic component includes two slide bars being oppositely arranged, and is distinguished on two slide bar
It is arranged with spring, connecting plate is respectively fixed on the spring, the connecting plate is fixed with the filter screen, the filter screen bottom
Second vibrator in portion drives the filter screen along the two slide bars upper and lower displacement.
In the embodiment of the present invention, the bottom of second screen box offers bottom discharge port, the side of second screen box
Wall offers side discharge port, and the construction waste in second screen box passes through the filter screen and is delivered to from the bottom discharge port
In first collecting tank, the construction waste left on the filter screen is delivered in the second collecting tank from the side discharge port.
The present invention separately provides a kind of screening technique using the construction waste crushing and screening device comprising following step
It is rapid:
S1: the crush box is added in construction waste, the construction waste is crushed and is fallen in the crush box
First screen box；
S2: the construction waste for entering first screen box rotates with the screening plate and falls to institute from the screen holes
It states on the filter screen of the second screen box；
S3: the construction waste after filter screen screening is collected to the collecting tank.
The present invention due to use above technical scheme, make it have it is following the utility model has the advantages that
(1) construction waste is added in crush box, is staggeredly revolved by the Disintegrating knife on the output shaft of 2 second motors
Turning sufficiently to crush the construction waste of addition, smashed construction waste enters first screen box by the first telescoping tube,
With the rotation of the screening plate and the vibration of first vibrator, the construction waste of different-grain diameter size on the screening plate
It is jolted layering, the construction waste is added to the second screening of lower section through the screen holes and the first discharge port discontinuity
It is sufficiently screened in case, by the vibration of the second vibrator in the second screen box, the screening of filter screen can be further increased
Effect.
(2) present invention can effectively make big partial size construction waste and small particle building useless by the vibration of the first vibrator
Material layering, the setting of retarder are conducive to extend residence time of the construction waste on the screening plate, promote different grains
The construction waste of diameter is sufficiently layered under the action of first vibrator, and the setting of damping spring can reduce from first
Impact of the construction waste of telescoping tube outflow to screening plate, the opposite two sides for being set to bottom plate of the first discharge port, can make screening plate
On construction waste balancedly fall into the second screen box, prevent screening plate weight uneven, while improving screening efficiency, it is multiple
The setting of first discharge port, which can be effectively prevented from second screen box, is added too many smashed construction waste, due to accumulation
So that screening is insufficient, screened if stopping addition waste material, and will affect working efficiency.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of construction waste screening plant of the present invention.
Fig. 2 is the partial enlargement diagram of elastic telescopic component of the present invention.
The corresponding relationship of appended drawing reference and component is as follows:
Pedestal 1；Support rod 11；First crossbar 12；Second crossbar 13；Crush box 2；Third feed inlet 20；Loading hopper
201；Second motor 21；Disintegrating knife 22；Spill spin block 23；Third discharge port 24；First telescoping tube 25；First screen box 3；First
Feed inlet 30；Bottom plate 31；First discharge port 310；Screening plate 32；Screen holes 320；First motor 33；U-lag 34；Retarder 35；
First vibrator 36；Sliding block 37；Damping spring 38；Baffle 39；Second screen box 4；Second charging aperture 40；Filter screen 41；Second
Telescoping tube 42；Second vibrator 43；Elastic telescopic component 44；Slide bar 441；Spring 442；Connecting plate 443；Bottom discharge port 45；Side
Discharge port 46；First collecting tank 5；Second collecting tank 6；Hopper slot 7.
Specific embodiment
For the benefit of to understanding of the invention, it is illustrated with reference to the accompanying drawings and embodiments.
Refering to Figure 1, the present invention provides a kind of construction waste crushing and screening device, including pedestal 1, crush box 2,
One screen box 3 and the second screen box 4 are provided with support rod 11 on the pedestal 1；The crush box 2 receives the construction waste
And the construction waste is crushed, the crush box 2 is set to 1 top of the pedestal, the crush box 2 and the support rod 11 it
Between be fixed with first crossbar 12；The top of first screen box 3 is equipped with first charging aperture 30, the first charging aperture 30 and institute
The bottom connection for stating crush box 2 is arranged to receive the construction waste from the crush box 2, the bottom of first screen box 3
It is formed with a bottom plate 31, the first discharge port 310 is offered on the bottom plate 31, the bottom plate 31 is equipped with screening plate 32, described
Screening plate 32 is horizontally rotated on the bottom plate 31 by the driving of first motor 33, and the screening plate 32 is equipped with screen holes 320,
The screen holes 320 are connected to first discharge port 310, and the construction waste on the screening plate 32 is from the screen holes 320
And first discharge port 310 flows out；The top of second screen box 4 is equipped with second charging aperture 40, the second charging aperture
40 are connected to the first discharge port 310 of first screen box 3, are equipped with filter screen 41 in second screen box 4 and are come with screening
From the construction waste of first screen box 3, second screen box 4 will pass through the construction waste after the filter screen 41 screening
It is delivered in collecting tank, the collecting tank is set on the pedestal 1.
In the embodiment of the present invention, the pedestal 1 is equipped with two opposite support rods 11, and two support rod 11 is respectively arranged on
The opposite sides of the crush box 2 is fixed with the two sides to the crush box 2, improves the stability of crush box 2.
In the embodiment of the present invention, the crush box 2 is in back taper, and the back taper design is conducive to the construction waste certainly
The crush box 2 enters first screen box 3；The top of the crush box 2 offers third feed inlet 20, it is preferable that institute
It states and is provided with loading hopper 201 on third feed inlet 20；The second motor is respectively equipped in the two lateral walls of the crush box 2
21, the output shaft of each second motor 21 passes through the side wall and protrudes into the crush box 2, is respectively and fixedly connected on the output shaft
There are the more Disintegrating knifes 22 for crushing the construction waste, the more Disintegrating knifes 22 are along the extension side of the output shaft
To being intervally arranged, each Disintegrating knife 22 is vertical with the output shaft；Preferably, the crushing knife on two output shafts
22 interlaced arrangement of piece, to improve crush efficiency；Preferably, spill spin block 23, institute are fixed on the output shaft of second motor 21
It states spill spin block 23 to be embedded in the side wall of the crush box 2, the spill spin block 23 is rotated with the rotation of the output shaft.This hair
In bright embodiment, second motor 21 is set in the first crossbar 12；The bottom of the crush box 2 offers third discharging
Mouth 24, the third discharge port 24 are connected to by the first telescoping tube 25 with the first charging aperture 30, pass through and control the crushing
The running parameter of blade 22 can pass through described first by the smashed construction waste of the Disintegrating knife 22 and stretch
The draw 25 and the screen holes 320 influence screening operation to prevent large-sized construction waste from overstocking on the screening plate 32
Progress.
In the embodiment of the present invention, first screen box 3 is in cylindrical tube shape；It is opened on the bottom plate 31 of first screen box 3
Equipped with axis hole 311, the output shaft of the first motor 33 passes through the axis hole 311 and is drivingly connected with the screening plate 32.It is described
The bottom of first screen box 3 is fixed with U-lag 34, and the first motor 33 is set in the U-lag 34；More preferably, described
The output shaft of one motor 33 is equipped with retarder 35, to control the revolving speed of the output shaft of the first motor 33, to extend institute
Residence time of the construction waste on the screening plate 32 is stated, and by abundant vibration point under the action of the first vibrator 36
Layer.
In the embodiment of the present invention, the quantity of the screen holes 320 is one, and the quantity of first discharge port 310 is two,
The diameter of the screen holes 320 is identical as the diameter of first discharge port 310, and 2 first discharge ports 310 are set to the bottom plate
31 opposite sides, during rotation, the screen holes 320 are connected to the screening plate 32 with first discharge port 310, institute
It states construction waste to fall from first discharge port 310, the setting of 2 first discharge port 310 can make on screening plate 32
Construction waste is balancedly fallen into the second screen box 4, it is uneven to prevent 32 weight of screening plate, while improving screening efficiency, multiple
The setting of first discharge port 310 can be effectively prevented from second screen box 4 and too many smashed construction waste is added, due to
Accumulation is screened if stopping waste material being added so that screening is insufficient, and will affect working efficiency.
As presently preferred embodiments of the present invention, the first vibrator 36 is connected on the cabinet of first screen box 3 to enable
In first screen box 3 and first screen box 3 construction waste vibration, and then improve construction waste screening efficiency and
Screening effect.In the present invention, second crossbar is respectively fixed between the two sides and the support rod 11 of first screen box 3
13, first vibrator 36 is fixed in the second crossbar 13.
Preferably, being arranged with a sliding block 37 on the support rod 11, the sliding block 37 is connect with the second crossbar 13, institute
It states second crossbar 13 to receive the vibration force of first vibrator 36 and be transferred to the sliding block 37, enables the sliding block 37 along institute
State 11 upper and lower displacement of support rod.More preferably, damping spring 38, one end of the damping spring 38 are arranged on the support rod 11
Fixed with the sliding block 37, the other end of the damping spring 38 is equipped with baffle 39, and the baffle 39 and the support rod 11 are solid
It is fixed.In the embodiment of the present invention, the quantity of the damping spring 38 is two, is respectively arranged on the top and bottom end of the sliding block 37, right
It answers, the quantity of the baffle 39 is two.
In the embodiment of the present invention, described the of the first discharge port 30 of first screen box 3 and second screen box 4
It is connected between two feed inlets 40 by the second telescoping tube 42.
Preferably, the bottom of the filter screen 41 is equipped with the second vibrator 43, the opposite sides of the filter screen 41 is distinguished
It is fixed with elastic telescopic component 44, the elastic telescopic component 44 is erected in second screen box 4, and the filter screen 41 exists
Along 44 upper and lower displacement of elastic telescopic component under the action of second vibrator 43；Second vibrator 43 passes through vibration
It jolts to the construction waste on the filter screen 41, is conducive to improve screening effect and screening efficiency.
Specifically, as shown in Fig. 2, the elastic telescopic component 44 includes two slide bars 441 being oppositely arranged, two slide bar
Spring 442 is arranged on 441 respectively, connecting plate 443, the connecting plate 443 and the mistake are respectively fixed on the spring 442
Strainer 41 is fixed, and the second vibrator 43 of 41 bottom of filter screen drives the filter screen 41 the next along the slide bar 441
It moves.The bottom of second screen box 4 offers bottom discharge port 45, and the side wall of second screen box 4 offers side discharge port
46, the construction waste in second screen box 4 passes through the filter screen 41 and is delivered to the first collection from the bottom discharge port 45
In slot 5, the construction waste left on the filter screen 41 is delivered in the second collecting tank 6 from the side discharge port 46；The present invention
In embodiment, the quantity of second telescoping tube 42 is two, and second screen box 4 has two groups.Preferably, 2 second screening
The side discharge port 46 of case 4 is oppositely arranged, the construction waste not filtered by the filter screen 41 in 2 second screen box 4, from
The outflow of side discharge port 46 enters in second collecting tank 6；Preferably, second collecting tank 6 and the side discharge port
Hopper slot 7 is equipped between 46, construction waste flows into second collecting tank 6 from the hopper slot 7；Preferably, pass through control
Height of the connecting plate 443 on the spring 442 is obliquely installed the filter screen 41, in order to the construction waste
The side discharge port 46 is fallen to from the eminence of the filter screen 41 using the vibration of self gravity and the second vibrator 43.
The details described above structure of construction waste screening plant of the present invention, illustrates its working method below.
First the first vibrator 36, first motor 33, the second motor 21 and the second vibrator 43 are electrically connected with the power supply simultaneously
Opening is switched, then construction waste is added in crush box 2 from loading hopper 201, is driven by the second motor 21 defeated
Two Disintegrating knifes 22 on shaft staggeredly rotate, by staggeredly being rotated between Disintegrating knife 13 by the abundant powder of the construction waste of addition
It is broken, the construction waste of crushing is then entered described the by the third discharge port 24 of 2 bottom of crush box and the first telescoping tube 25
In one screen box 3, the first vibrator 36 in first crossbar 12 is with movable slider 37, under the buffering of spring 38 on support rod 11
Sliding, and then the first screen box 3 is and then synchronized and is slided up and down, meanwhile, after the second motor 21 passes through 35 reduction of speed of retarder, drive sieve
Disk 32 is selected slowly to be rotated, so that smashed construction waste passes through screen holes 320 and the first discharge port in the first screen box 3
310 in rotary course, and discontinuity is added in the second different telescoping tube 42 of lower section, is entered not by the second telescoping tube 42
In the second same screen box 4, and smashed construction waste in the second screen box 4, it is vibrated by the second vibrator 43 so that sliding
Plate 46 slides up and down under 442 buffer function of spring along slide bar 441, is sufficiently screened to smashed construction waste, and
Tiny particle passes through the screening of filter screen 41, is flowed into the first collecting tank 5 from the bottom discharge port 45 of 4 bottom end of the second screen box,
And the bulky grain being blocked on filter screen 41, it is imported into funnel 7 by the side discharge port 46 of side wall, then entered by funnel 7
Into the second collecting tank 6.It is slowly rotated by screening plate 31 in this way, smashed construction waste discontinuity is added to lower section not
It in the second same screen box 4, can effectively avoid that too many smashed construction waste is added in second screen box 4, due to
Accumulation is screened if stopping waste material being added so that screening is insufficient, and will affect working efficiency, so the present apparatus is equipped with two
A second screen box 4 and discontinuity addition, not only can effectively be screened, but also working efficiency is also high.
It is described the invention in detail above in conjunction with accompanying drawings and embodiments, those skilled in the art can basis
Above description makes many variations example to the present invention.Thus, certain details in embodiment should not constitute limitation of the invention,
The present invention will be using the range that the appended claims define as protection scope of the present invention.
Claims (10)
1. a kind of construction waste crushing and screening device characterized by comprising
Pedestal is provided with support rod on the pedestal；
Crush box receives the construction waste and crushes the construction waste, and the crush box is set to above the pedestal, institute
Crush box is stated to fix with the support rod；
First screen box, top is connected to the bottom of the crush box to be arranged to receive the construction waste from the crush box,
The bottom of first screen box has a bottom plate, and the first discharge port is offered on the bottom plate, and the bottom plate is equipped with sieve
Disk is selected, the screening plate is driven by first motor to horizontally rotate on the bottom plate, and the screening plate is equipped with screen holes, institute
It states screen holes to be connected to first discharge port, the construction waste on the screening plate discharges from the screen holes and described first
Mouth outflow；
Second screen box, top are connected to the first discharge port of first screen box, and filtering is equipped in second screen box
For net to screen the construction waste from first screen box, second screen box will pass through building after filter screen screening
It builds waste material to be delivered in collecting tank, the collecting tank is set on the pedestal.
2. construction waste crushing and screening device according to claim 1, which is characterized in that the crush box is in back taper,
The two sides of the crush box are respectively equipped with the second motor, and the output shaft of each second motor has been respectively and fixedly connected with described for crushing
The Disintegrating knife of construction waste, the Disintegrating knife on each output shaft are staggered in the crushing box.
3. construction waste crushing and screening device according to claim 1, which is characterized in that the bottom plate of first screening plate
On offer axis hole, the output shaft of the first motor passes through the axis hole and the screening plate is drivingly connected.
4. construction waste crushing and screening device according to claim 1, which is characterized in that the cabinet of first screen box
On be connected with the first vibrator to enable first screen box vibrate, be arranged with a sliding block on the support rod, the sliding block with
Cross bar is connected between first screen box, the cross bar receives the vibration force of first vibrator and is transferred to described
Sliding block, the sliding block is along the support rod upper and lower displacement.
5. construction waste crushing and screening device according to claim 4, which is characterized in that be arranged with and subtract on the support rod
Spring is shaken, one end of the damping spring is fixed with the sliding block, and the other end of the damping spring is equipped with baffle, the baffle
It is fixed with the support rod.
6. the construction waste crushing and screening device according to any claim in claim 2 to 5, which is characterized in that institute
It states and is connected between the top of the first screen box and the crush box by the first telescoping tube, the bottom of first screen box and institute
The top for stating the second screen box is connected to by the second telescoping tube, and the quantity of second telescoping tube is two, second screen box
Quantity be two.
7. construction waste crushing and screening device according to claim 1, which is characterized in that the opposite sides of the filter screen
It is respectively fixed with elastic telescopic component, the elastic telescopic component is erected in second screen box, the bottom of the filter screen
Portion is equipped with the second vibrator to enable the filter screen under the action of second vibrator above and below the elastic telescopic component
Displacement.
8. construction waste crushing and screening device according to claim 7, which is characterized in that the elastic telescopic component includes
Two slide bars being oppositely arranged are arranged with spring on two slide bar respectively, connecting plate, the company are respectively fixed on the spring
Fishplate bar is fixed with the filter screen, and the second vibrator of the filtering sieve bottom drives the filter screen above and below two slide bar
Displacement.
9. construction waste crushing and screening device according to claim 8, which is characterized in that the bottom of second screen box
Bottom discharge port is offered, the side wall of second screen box offers side discharge port, the construction waste in second screen box
It is delivered in the first collecting tank across the filter screen from the bottom discharge port, the construction waste left on the filter screen is from institute
Side discharge port is stated to be delivered in the second collecting tank.
10. a kind of sieve using construction waste crushing and screening device described in any claim in claim 1 to 5,7 to 9
Choosing method, which comprises the following steps:
S1: the crush box is added in construction waste, the construction waste is crushed in the crush box and falls to described
First screen box；
S2: the construction waste for entering first screen box rotates with the screening plate and falls to described the from the screen holes
On the filter screen of two screen boxes；
S3: the construction waste after filter screen screening is collected to the collecting tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910060892.7A CN109701703B (en) | 2019-01-23 | 2019-01-23 | Construction waste crushing and screening device and screening method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910060892.7A CN109701703B (en) | 2019-01-23 | 2019-01-23 | Construction waste crushing and screening device and screening method thereof |
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| CN109701703A true CN109701703A (en) | 2019-05-03 |
| CN109701703B CN109701703B (en) | 2023-06-09 |
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Cited By (6)
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|---|---|---|---|---|
| CN110314747A (en) * | 2019-08-12 | 2019-10-11 | 黄基华 | A kind of powder chemicals screening plant with crushing function |
| CN110898977A (en) * | 2019-12-17 | 2020-03-24 | 邓昌杰 | Sieving mechanism is smashed to amplitude adjustable construction waste |
| CN112221629A (en) * | 2020-09-10 | 2021-01-15 | 嘉善县鸿翔资源再生利用有限公司 | Building solid waste retrieves regeneration with mixing material system |
| CN112718796A (en) * | 2020-12-15 | 2021-04-30 | 深圳市卓域环保科技有限公司 | Building muck utilization device |
| CN112718124A (en) * | 2020-12-29 | 2021-04-30 | 夏立新 | Civil engineering construction waste treatment device |
| CN115415031A (en) * | 2022-07-25 | 2022-12-02 | 董杨成 | Wood processing and collecting device and using method thereof |
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