CN107684957A - A kind of municipal afforestation soil environmental protection repair process device - Google Patents
A kind of municipal afforestation soil environmental protection repair process device Download PDFInfo
- Publication number
- CN107684957A CN107684957A CN201710955381.2A CN201710955381A CN107684957A CN 107684957 A CN107684957 A CN 107684957A CN 201710955381 A CN201710955381 A CN 201710955381A CN 107684957 A CN107684957 A CN 107684957A
- Authority
- CN
- China
- Prior art keywords
- casing
- motor
- rotation
- environmental protection
- crushing
- 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.)
- Withdrawn
Links
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B77/00—Machines for lifting and treating soil
-
- 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
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/26—Details
- B02C13/28—Shape or construction of beater elements
-
- 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
- B02C13/26—Details
- B02C13/286—Feeding or discharge
-
- 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
- B02C23/14—Separating or sorting of material, associated with crushing or disintegrating with more than one separator
-
- 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
- B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/18—Adding fluid, other than for crushing or disintegrating by fluid energy
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
-
- 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
- B02C13/26—Details
- B02C13/286—Feeding or discharge
- B02C2013/28609—Discharge means
-
- 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
- B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
- B02C2023/165—Screen denying egress of oversize material
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- Environmental Sciences (AREA)
- Crushing And Pulverization Processes (AREA)
Abstract
The invention discloses a kind of municipal afforestation soil environmental protection repair process device,Including casing,Charging aperture and liquor box are provided with the top of casing,And the lower end of the charging aperture is grabbed provided with stirring,It is provided with the right flank of casing and crushes motor,Grabbed simultaneously on motor is crushed provided with crushing,The inside of the casing is provided with conveyer belt,And it is provided with rotation motor in the lower right corner of conveyer belt,Rotation disk is connected with the right side of the rotation motor,The top of the rotation disk is provided with primary filter,Because stirring is grabbed so that tentatively being stirred into the soil layer in casing,Soil layer after stirring enters the working range for crushing and grabbing in the presence of conveyer belt,Crushing, which is grabbed, further crushes soil layer,Simultaneously in crushing process repair liquid spray to soil layer carry out soil in and,The soil after crushing is neutralized to spread in the presence of rotation disk into flower bed isolation tank,Therefore the present invention is simple in construction,Repair rate is high,And then it is worthy to be popularized.
Description
Technical field
The present invention relates to a kind of soil remediation processing unit, more particularly to a kind of municipal afforestation soil environmental protection repair place
Manage device.
Background technology
Municipal administration, refers to every Administration in city, and gardens refer in certain region application engineering technology and skill
Art means, by transforming landform (or further building mountain, piling and layout of stones, Li Shui), plantation trees flowers and plants, constructing architecture and arrangement garden road etc.
The beautiful natural environment and condition of strolling about or have a rest that approach creation forms, take the course of its own, have significant achievement is in Chinese Han nationality builds
Historic gardens are built, environmental protection, full name environmental protection, refer to that the mankind for solution reality or potential environmental problem, coordinate the mankind
With the relation of environment, the general name for the various action for ensureing the sustainable development of economic society and taking, its ways and means has engineering
It is technology, administration, also have law, it is economical, communication and education etc. repair, existing municipal afforestation soil ring
There is the shortcomings that unreasonable, complicated design, poor processing effect in the multiple processing unit of guarantee, therefore need a kind of design of research and development badly and close
Reason, simple in construction, high treating effect municipal afforestation soil environmental protection repair process device.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of municipal afforestation soil environmental protection repair process device.
In order to solve the above-mentioned technical problem, the technical scheme is that：A kind of municipal afforestation soil environmental protection is repaired
Processing unit, including casing, the upper surface of the casing are provided with screw thread mouth, are provided with charging aperture in the top of screw thread mouth, it is described enter
The right side of material mouth is provided with liquor box, and is provided with shower nozzle in the bottom surface of liquor box, and the shower nozzle is extended in casing；
The middle part of the casing left surface is provided with traction and linked up with, and is provided with stirring motor, and institute in the top of traction hook
State stirring motor to grab provided with stirring, the stirring is grabbed in casing, and the stirring is grabbed positioned at the charging aperture just
Lower section；
The right flank of the casing, which is provided with, crushes motor, and the crushing motor is grabbed provided with crushing, and position is grabbed in the crushing
Rotation disk is provided with casing, and in the lower section for crushing motor, the upper surface of the rotation disk is equipped with primary filter screen, and first
The lower surface of level filter screen is provided with the motor that impulses, while the lower section of the primary filter screen is provided with secondary filter screen；
The inside of the casing is provided with conveyer belt, and is provided with rotation motor in the lower right corner of conveyer belt, and in rotation motor
On be connected with driving gear, driven gear is engaged with the right side of the driving gear, the right side of the rotation motor is provided with bearing
Seat, the upper end of the bearing block are fixed on rotation disk, and the rotation motor and the bearing block, are installed in casing in addition
The lower right corner in portion.
As the preferred technical solution of the present invention：The charging aperture is to be flexibly connected with the casing, and the charging aperture
It is made with the casing of engineering plastics.
As the preferred technical solution of the present invention：Plant ash preparation is loaded with the liquor box.
As the preferred technical solution of the present invention：The angle of the shower nozzle and the lower plane of the casing is 30 degree.
As the preferred technical solution of the present invention：The rotation disk is to be flexibly connected with the casing, and the rotation disk
Rotation angle between the casing is 15 degree, and the conveyer belt is located at the upper end of rotation disk.
As the preferred technical solution of the present invention：The secondary filter screen for being internally provided with right low left high of the rotation disk, and
The secondary filter screen is made up of 800 mesh stainless steels.
As the preferred technical solution of the present invention：The toothed disc of the driving gear is more than the gear of the driven gear
Disk.
Using above-mentioned technical proposal, the beneficial effects of the invention are as follows：1. because the lower end in charging aperture is grabbed provided with stirring, from
And tentatively to be stirred and crushed into the larger soil block of box house, and then ensure into the knot in the soil of conveyer belt
Block is small；
2. due to setting conveyer belt so that into the soil in casing, it is transported in the working range for crushing and grabbing,
Further soil is stirred and crushed, while coordinates shower nozzle that plant ash preparation is sprayed to the soil in being stirred, is changed
The acid-base value of soil, and then acid-base value is up to standard after guarantee soil outflow casing；
3. due to setting traction hook so that the device can be drawn, and then be advantageous to the device can be direct
Move to job site use, further ensure it is up to standard after soil can directly spill into the flower bed of central partition, and then
Soil transport number is reduced, reduces soil remediation cost and construction cost；
4. entered due to setting rotation motor cooperation rotation disk so that the soil after up to standard can be laid on greenbelt
And save and manually pave soil, manpower is saved, while reduce greening cost；
5. due to charging aperture with casing to be flexibly connected, so that personnel can enter box house by charging aperture,
And then realize box house maintenance conveniently, it is convenient；
6. because secondary filter screen is made up of 800 mesh stainless steels, life length during so as to ensure that filter screen uses, while charging aperture and institute
State casing to be made of engineering plastics, equipment overall weight is reduced while durable, and then cause device traction more
It is convenient and light to add；
7. because the toothed disc of driving gear is more than the toothed disc of driven gear, turned round so that gear train has to slow down to increase
Effect so that rotation disk rotation strength is sufficient, avoid the interim card of rotation disk.
Brief description of the drawings
Fig. 1 is the agent structure schematic diagram of the present invention；
Fig. 2 is the partial enlargement structural representation in the casing lower right corner of the present invention.
In figure：1- traction hooks, 2- stirring motors, 3- screw thread mouths, 4- charging apertures, 5- stirrings are grabbed, 6- liquor boxs, 7- sprays
Head, 8- crush motor, 9- conveyer belts, 10- rotation disks, 11- rotation motors, 12- casings, 13- primary filter screens, and 14- impulses motor,
15- level filter screen, 16- bearing blocks, 17- driving gears, 18- driven gears, 19- are crushed and grabbed.
Embodiment
The embodiment of the present invention is described further below in conjunction with the accompanying drawings.Herein it should be noted that for
The explanation of these embodiments is used to help understand the present invention, but does not form limitation of the invention, in addition, disclosed below
As long as each embodiment of the invention in involved technical characteristic do not form conflict can each other and be mutually combined；
It is further to note that the term " front portion ", " back ", " middle part ", " top " " outside ", " inner side " " preceding "
The orientation or position relationship of instructions such as " rear " are based on orientation shown in the drawings or position relationship, are for only for ease of and describe this hair
It is bright, rather than instruction or imply signified device or element must have specific orientation, with specific azimuth configuration and operation,
Therefore it is not considered as limiting the invention.
Embodiment
Fig. 1 and Fig. 2 are referred to, the present invention provides a kind of technical scheme：A kind of municipal afforestation soil environmental protection repair place
Device is managed, including casing 12, the upper surface of the casing 12 are provided with screw thread mouth 3, and charging aperture 4, institute are provided with the top of screw thread mouth 3
The right side for stating charging aperture 4 is provided with liquor box 6, and is provided with shower nozzle 7 in the bottom surface of liquor box 6, and the shower nozzle 7 extends to casing 12
It is interior；
The middle part of the left surface of casing 12 is provided with traction hook 1, and is provided with stirring motor 2 in the top of traction hook 1,
And the stirring motor 2 grabs 5 provided with stirring, the stirring is grabbed 5 and is arranged in casing 12, and the stirring grabs 5 positioned at described
The underface of charging aperture 4；
The right flank of the casing 12, which is provided with, crushes motor 8, and the crushing motor 8 grabs 19, and the powder provided with crushing
It is broken to grab 19 in casing 12, and rotation disk 10 is provided with the lower section for crushing motor 8, the upper surface of the rotation disk 10 is equipped with
Primary filter screen 13, and the motor 14 that impulses is provided with the lower surface of primary filter screen 13, while the lower section of the primary filter screen 13 is provided with
Secondary filter screen 15；
The inside of the casing 12 is provided with conveyer belt 9, and is provided with rotation motor 11 in the lower right corner of conveyer belt 9, and is putting
Driving gear 17 is connected with rotating motor 11, the right side of the driving gear 17 is engaged with driven gear 18, the rotation motor
11 right side is provided with bearing block 16, and the upper end of the bearing block 16 is fixed on rotation disk 10, in addition the He of rotation motor 11
The bearing block 16, the lower right corner being installed in inside casing 12.
Wherein：The charging aperture 4 is to be flexibly connected with the casing 12, so that the internal maintenance maintenance side of casing 12
Just, and the charging aperture 4 and the casing 12 are made of engineering plastics, are substantially reduced equipment overall weight, are facilitated the dress
The transport and traction put.
Wherein：Plant ash preparation is loaded with the liquor box 6, the basicity of soil with sweetening of the soil, can be reduced.
Wherein：The angle of the shower nozzle 7 and the lower plane of the casing 12 is 30 degree, so as to ensure repairing for the ejection of shower nozzle 7
Soil can be completely covered in multiple liquid, while also allows for soil with repairing fully contacting for liquid.
Wherein：The rotation disk 10 and the casing 12 to be flexibly connected, and the rotation disk 10 and the casing 12 it
Between rotation angle be 15 degree so that soil can be laid on greenbelt by the device, reduction human input, and described
Conveyer belt 9 is located at the upper end of rotation disk 10, so as to which the soil for ensureing to stir can be dropped on rotation disk 10.
Wherein：The secondary filter screen 15 for being internally provided with right low left high of the rotation disk 10, and the secondary filter screen 15 is
800 mesh stainless steels are made, so that soil uniformity, passes through the survival rate of trees.
Wherein：The toothed disc deceleration that the toothed disc of the driving gear 17 is more than the driven gear 18 increases torsion, improves pendulum
The rotation power of rotating disk 10.
The present invention operation principle be：In use, the device is drawn to greenbelt annex and started by drawing hook 1
Equipment；
Second step, soil is poured into from charging aperture 4, it is preliminary to carry out now in the presence of stirring motor 2 and stirring grab 5
Stirring in soil compared with big lumps crushes；
3rd step, the soil after preliminary stirring is in the presence of conveyer belt 9, into crushing in the working range for grabbing 19, this
When crush and grab 19 and further crush soil, and in crushing process, shower nozzle 7 will repair liquid and spray to the hack that is tossed, enter
And ensure hack with repairing the abundant combination of liquid；
4th step, the soil after being repaired after crushing are transported on rotation disk 10 by conveyer belt 9, now swashing in rotation disk 10
Seismoelectric machine 14 sieves to the soil after reparation, and pulverized stone, is not sized out in the presence of the motor 14 that impulses,
Soil continues to fall into secondary filter screen 15, and secondary filter screen 15 refines soil；
5th step, rotation motor 11 are put rotation disk 10 or so by the engagement between driving gear 17 and travelling gear 18
It is dynamic, the soil after refinement is tiled to greenbelt；
Finally, after using terminating, maintained equipment.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, 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, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as to the involved claim of limitation.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (7)
1. a kind of municipal afforestation soil environmental protection repair process device, including casing (12), the upper surface of the casing (12)
Provided with screw thread mouth (3), charging aperture (4) is provided with the top of screw thread mouth (3), it is characterised in that：Set on the right side of the charging aperture (4)
There is liquor box (6), and shower nozzle (7) is provided with the bottom surface of liquor box (6), the shower nozzle (7) is extended in casing (12)；
The middle part of casing (12) left surface is provided with traction hook (1), and is provided with stirring motor in the top of traction hook (1)
(2), and the stirring motor (2) is grabbed (5) provided with stirring, and the stirring grabs (5) in casing (12), and the stirring
Grab the underface that (5) are located at the charging aperture (4)；
The right flank of the casing (12), which is provided with, crushes motor (8), and the crushing motor (8) is grabbed (19) provided with crushing, and institute
State crushing and grab (19) and be located in casing (12), and rotation disk (10), the rotation disk (10) are provided with the lower section for crushing motor (8)
Upper surface be equipped with primary filter screen (13), and be provided with the motor (14) that impulses in the lower surface of primary filter screen (13), while described
The lower section of primary filter screen (13) is provided with secondary filter screen (15)；
The inside of the casing (12) is provided with conveyer belt (9), and is provided with rotation motor (11) in the lower right corner of conveyer belt (9), and
Driving gear (17) is connected with rotation motor (11), driven gear (18) is engaged with the right side of the driving gear (17),
The right side of the rotation motor (11) is provided with bearing block (16), and the upper end of the bearing block (16) is fixed on rotation disk (10),
The other rotation motor (11) and the bearing block (16), it is installed in the internal lower right corner of casing (12).
A kind of 2. municipal afforestation soil environmental protection repair process device according to claim 1, it is characterised in that：It is described
Charging aperture (4) is to be flexibly connected with the casing (12), and the charging aperture (4) and the casing (12) use engineering plastics
It is made.
A kind of 3. municipal afforestation soil environmental protection repair process device according to claim 1, it is characterised in that：It is described
Plant ash preparation is loaded with liquor box (6).
A kind of 4. municipal afforestation soil environmental protection repair process device according to claim 1, it is characterised in that：It is described
The angle of shower nozzle (7) and the lower plane of the casing (12) is 30 degree.
A kind of 5. municipal afforestation soil environmental protection repair process device according to claim 1, it is characterised in that：It is described
Rotation disk (10) is to be flexibly connected with the casing (12), and the rotation angle between the rotation disk (10) and the casing (12)
Spend for 15 degree, and the conveyer belt (9) is located at the upper end of rotation disk (10).
A kind of 6. municipal afforestation soil environmental protection repair process device according to claim 1, it is characterised in that：It is described
The secondary filter screen (15) for being internally provided with right low left high of rotation disk (10), and the secondary filter screen (15) is 800 mesh stainless steels
It is made.
A kind of 7. municipal afforestation soil environmental protection repair process device according to claim 1, it is characterised in that：It is described
The toothed disc of driving gear (17) is more than the toothed disc of the driven gear (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710955381.2A CN107684957A (en) | 2017-10-14 | 2017-10-14 | A kind of municipal afforestation soil environmental protection repair process device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710955381.2A CN107684957A (en) | 2017-10-14 | 2017-10-14 | A kind of municipal afforestation soil environmental protection repair process device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107684957A true CN107684957A (en) | 2018-02-13 |
Family
ID=61154557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710955381.2A Withdrawn CN107684957A (en) | 2017-10-14 | 2017-10-14 | A kind of municipal afforestation soil environmental protection repair process device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107684957A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108370672A (en) * | 2018-04-26 | 2018-08-07 | 爱土工程环境科技有限公司 | A kind of alkaline land improving equipment and modification method |
| CN109201211A (en) * | 2018-11-27 | 2019-01-15 | 王认认 | A kind of construction site residue milling machinery |
| CN109201210A (en) * | 2018-11-27 | 2019-01-15 | 王认认 | A kind of building disintegrating slag materials reduction |
| CN112827623A (en) * | 2021-01-06 | 2021-05-25 | 广州市伍陆壹电子商务有限公司 | Special soil preparation device for agricultural seedling culture |
| CN112913367A (en) * | 2021-01-22 | 2021-06-08 | 方培校 | Hardened soil restoration device for landscaping |
-
2017
- 2017-10-14 CN CN201710955381.2A patent/CN107684957A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108370672A (en) * | 2018-04-26 | 2018-08-07 | 爱土工程环境科技有限公司 | A kind of alkaline land improving equipment and modification method |
| CN108370672B (en) * | 2018-04-26 | 2023-10-03 | 爱土工程环境科技有限公司 | Saline-alkali soil improvement equipment and improvement method |
| CN109201211A (en) * | 2018-11-27 | 2019-01-15 | 王认认 | A kind of construction site residue milling machinery |
| CN109201210A (en) * | 2018-11-27 | 2019-01-15 | 王认认 | A kind of building disintegrating slag materials reduction |
| CN112827623A (en) * | 2021-01-06 | 2021-05-25 | 广州市伍陆壹电子商务有限公司 | Special soil preparation device for agricultural seedling culture |
| CN112913367A (en) * | 2021-01-22 | 2021-06-08 | 方培校 | Hardened soil restoration device for landscaping |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180213 |
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| WW01 | Invention patent application withdrawn after publication |