CN112169889B - Recovery unit is smashed to building rubbish - Google Patents
Recovery unit is smashed to building rubbish Download PDFInfo
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- CN112169889B CN112169889B CN202010892163.0A CN202010892163A CN112169889B CN 112169889 B CN112169889 B CN 112169889B CN 202010892163 A CN202010892163 A CN 202010892163A CN 112169889 B CN112169889 B CN 112169889B
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- main body
- separation
- fixed
- permanent magnet
- plate
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- 238000011084 recovery Methods 0.000 title claims description 5
- 230000005540 biological transmission Effects 0.000 claims abstract description 28
- 238000001125 extrusion Methods 0.000 claims abstract description 27
- 239000002699 waste material Substances 0.000 claims abstract description 25
- 238000010276 construction Methods 0.000 claims abstract description 23
- 230000006835 compression Effects 0.000 claims abstract description 14
- 238000007906 compression Methods 0.000 claims abstract description 14
- 238000004064 recycling Methods 0.000 claims abstract description 5
- 238000000926 separation method Methods 0.000 claims description 39
- 239000007921 spray Substances 0.000 claims description 8
- 230000007246 mechanism Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000002184 metal Substances 0.000 abstract description 8
- 238000004140 cleaning Methods 0.000 abstract description 4
- 239000004567 concrete Substances 0.000 abstract description 3
- 229910052755 nonmetal Inorganic materials 0.000 abstract description 3
- 230000009471 action Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 239000011150 reinforced concrete Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000005571 horizontal transmission Effects 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/02—Crushing or disintegrating by roller mills with two or more rollers
- B02C4/08—Crushing or disintegrating by roller mills with two or more rollers with co-operating corrugated or toothed crushing-rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/06—Spray cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/28—Details
- B02C4/286—Feeding devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/28—Details
- B02C4/30—Shape or construction of rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/28—Details
- B02C4/42—Driving mechanisms; Roller speed control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
- B03C1/30—Combinations with other devices, not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
- B08B1/16—Rigid blades, e.g. scrapers; Flexible blades, e.g. wipers
- B08B1/165—Scrapers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/30—Cleaning by methods involving the use of tools by movement of cleaning members over a surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C2201/00—Codes relating to disintegrating devices adapted for specific materials
- B02C2201/02—Codes relating to disintegrating devices adapted for specific materials for reinforced concrete
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a construction waste crushing and recycling device which comprises a main body, cover plates, support tables, compression springs, an upper extrusion roller, a lower extrusion roller, spiral guide strips, a separating part and a conveying part, wherein the left part and the right part of the top end of the main body are respectively hinged with one cover plate, the left end and the right end of the inner part of the main body are respectively fixed with one horizontal support table, the two compression springs are respectively fixed on the two support tables, and the top ends of the compression springs are fixed with the bottom ends of the two cover plates. The permanent magnet plate cleaning machine is compact in structure and convenient to use, the construction waste can be automatically crushed and screened only by manually filling the construction waste to be recovered and treated, so that non-metal parts such as concrete and metal parts can be separated and classified and transported, the metal adsorbed on the permanent magnet plate can be cleaned by regularly starting the transmission motor, the permanent magnet plate can be ensured to be cleaned for a long time, and then the permanent magnet plate cleaning machine can be used for a long time.
Description
Technical Field
The invention relates to a crushing and recovering device, in particular to a crushing and recovering device for construction waste.
Background
The construction waste refers to waste generated during the dismantling of a main structure of a building, such as a reinforced concrete block, a block, a plain concrete block, a mortar block and the like, and the construction waste can be further crushed and screened to be used as recycled aggregate or recycled decorative brick, but the construction waste contains materials which are difficult to crush and have higher recycling value, such as reinforcing steel bars, metal embedded parts and the like. In order to achieve the maximum economic benefit, the construction waste is required to be classified and treated correspondingly, in the conventional construction waste recovery, a crusher is mostly adopted to crush the reinforced concrete blocks, and then metal materials in the reinforced concrete blocks are screened out manually, so that the process consumes a large amount of manpower, the screening efficiency is low, secondary pollution is easily caused to the environment, and the defects of the traditional construction waste crushing and recovering device are highlighted.
Disclosure of Invention
The invention aims to provide a construction waste crushing and recycling device to solve the technical problem.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a recovery unit is smashed to construction waste, includes main part, apron, brace table, compression spring, goes up squeeze roll, spiral gib block, separation part, conveying part down, two are respectively articulated to have an apron about the main part top, both ends respectively are fixed with a horizontally brace table about the main part is inside, two respectively be fixed with two compression springs on the brace table, each compression spring top and two apron bottom mounting, two horizontally last squeeze roll are installed on main part upper portion, two horizontally squeeze roll, two are installed to the main part lower part go up squeeze roll and two all be fixed with the spiral gib block on squeeze roll's the outer wall down, main part internally mounted has a separation part, a conveying part is installed to the main part bottom.
On the basis of the technical scheme, the separation part comprises a separation tile, a transmission screw, a three-fork scraper, an upper guide plate, a support rod, a permanent magnet plate, a lower guide plate, an upper separation plate, an upper discharge port and a transmission motor, wherein the separation tile extending horizontally is fixed in the main body, the separation tile is internally hinged with a transmission screw through a bearing, the transmission screw is in threaded connection with a vertical three-fork scraper, the front end and the rear end of the separation tile are respectively fixed with a horizontal upper guide plate, the main body is internally fixed with two horizontally extending support rods, the two support rods are respectively fixed with a horizontal permanent magnet plate, the left end and the right end of the main body are respectively fixed with a horizontal lower guide plate, the front end and the rear end of the lower guide plate are respectively fixed with an upper separation plate, the front end and the rear end of the main body bottom are respectively provided with a horizontal upper discharge port, and the two upper separation plates are fixedly connected with the bottom ends of the two upper discharge ports, a horizontal transmission motor is fixed at the front end of the main body, and a rotating shaft of the transmission motor is fixed with the front end of the transmission screw rod.
On the basis of the technical scheme, the conveying part comprises a lower discharge hole, a lower separation plate, a spray pipe, a carrier roller, a conveying belt and a dragging motor, a horizontal lower discharge hole is formed in the front end of the main body, the bottom end of the lower discharge hole is fixedly provided with the inclined lower separation plate, the spray pipe extending horizontally is fixed at the left end and the right end of the lower discharge hole, the carrier roller extending horizontally is installed at the bottom of the main body through a bearing, the carrier roller is sleeved with the horizontal conveying belt, the front portion of the right end of the main body is provided with the horizontal dragging motor, and a rotating shaft of the dragging motor is fixed with the front carrier roller of the main body.
On the basis of the technical scheme, the two upper extrusion rollers and the two lower extrusion rollers are externally connected with a transmission mechanism, the spray pipe is externally connected with a water supply pump machine, the transmission motor can drive the three-fork scraper to move back and forth along the two permanent magnet plates after being electrified, the dragging motor can drive the conveying belt to move back and forth after being electrified, and the horizontal distance between the two upper extrusion rollers is larger than the horizontal distance between the two lower extrusion rollers.
Compared with the prior art, the invention has the following advantages: the permanent magnet plate cleaning machine is compact in structure and convenient to use, the construction waste can be automatically crushed and screened only by manually filling the construction waste to be recovered and treated, so that non-metal parts such as concrete and metal parts can be separated and classified and transported, the metal adsorbed on the permanent magnet plate can be cleaned by regularly starting the transmission motor, the permanent magnet plate can be ensured to be cleaned for a long time, and then the permanent magnet plate cleaning machine can be used for a long time.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view showing the installation of the upper and lower squeeze rollers according to the present invention.
Fig. 3 is a schematic view of the installation of the trifurcated scraper of the invention.
Fig. 4 is a schematic sectional structure view of the main body of the present invention.
Fig. 5 is a schematic view of the installation of the driving motor and the dragging motor of the present invention.
In the figure: 1. the main part, 2, the apron, 3, a supporting bench, 4, compression spring, 5, go up the crushing roller, 6, lower crushing roller, 7, spiral gib block, 8, the separation part, 9, the conveying part, 10, the separation tile, 11, drive screw, 12, trident scraper, 13, go up the deflector, 14, the bracing piece, 15, permanent magnetism board, 16, lower deflector, 17, go up the separation board, 18, last discharge gate, 19, driving motor, 20, lower discharge gate, 21, lower separation board, 22, the shower, 23, the bearing roller, 24, the conveyer belt, 25, drag the motor.
Detailed Description
The invention is explained in further detail below with reference to the figures and the specific embodiments.
As shown in fig. 1-5, a construction waste crushing and recycling device comprises a main body 1, a cover plate 2, a support table 3, a compression spring 4, an upper extrusion roller 5, a lower extrusion roller 6, a spiral guide strip 7, a separation part 8 and a conveying part 9, the left and right parts of the top end of the main body 1 are respectively hinged with a cover plate 2, the left and right ends of the inside of the main body 1 are respectively fixed with a horizontal supporting platform 3, two compression springs 4 are respectively fixed on the two supporting platforms 3, the top end of each compression spring 4 is fixed with the bottom ends of the two cover plates 2, two horizontal upper extrusion rollers 5 are arranged at the upper part of the main body 1, two horizontal lower extrusion rollers 6 are arranged at the lower part of the main body 1, spiral guide strips 7 are fixed on the outer walls of the two upper extrusion rollers 5 and the two lower extrusion rollers 6, the main body 1 is internally provided with a separation part 8, and the bottom of the main body 1 is provided with a conveying part 9.
The separation part 8 comprises a separation tile 10, a transmission screw rod 11, a three-fork scraper 12, an upper guide plate 13, a support rod 14, a permanent magnet plate 15, a lower guide plate 16, an upper separation plate 17, an upper discharge port 18 and a transmission motor 19, the separation tile 10 extending horizontally is fixed inside the main body 1, the separation tile 10 is hinged with a transmission screw rod 11 through a bearing, the transmission screw rod 11 is connected with a vertical three-fork scraper 12 in a threaded manner, the horizontal upper guide plate 13 is respectively fixed at the front end and the rear end of the separation tile 10, the support rod 14 extending horizontally is fixed inside the main body 1, the horizontal permanent magnet plate 15 is respectively fixed on the two support rods 14, the horizontal lower guide plate 16 is respectively fixed at the left end and the right end inside the main body 1, the upper separation plate 17 is respectively fixed at the front end and the rear end of the lower guide plate 16, the horizontal upper discharge port 18 is respectively opened at the front end and the rear end of the bottom of the main body 1, the two upper separation plates 17 are fixedly connected with the bottom ends of the two upper discharge ports 18, a horizontal transmission motor 19 is fixed at the front end of the main body 1, and a rotating shaft of the transmission motor 19 is fixed with the front end of the transmission screw rod 11.
The conveying part 9 comprises a lower discharge port 20, a lower separation plate 21, a spray pipe 22, carrier rollers 23, a conveying belt 24 and a dragging motor 25, wherein the front end of the main body 1 is provided with the horizontal lower discharge port 20, the bottom end of the lower discharge port 20 is fixedly provided with the inclined lower separation plate 21, the left end and the right end of the lower discharge port 20 are fixedly provided with the horizontally extending spray pipe 22, the bottom of the main body 1 is provided with the two horizontally extending carrier rollers 23 through bearings, the two carrier rollers 23 are sleeved with the horizontal conveying belt 24, the front part of the right end of the main body 1 is provided with the horizontal dragging motor 25, and a rotating shaft of the dragging motor 25 is fixed with the carrier roller 23 at the front part of the main body 1.
The upper extrusion roller 5 and the two lower extrusion rollers 6 are externally connected with a transmission mechanism, the spray pipe 22 is externally connected with a water supply pump machine, the transmission motor 19 can drive the three-fork scraper 12 to move back and forth along the two permanent magnet plates 15 after being electrified, the dragging motor 25 can drive the conveyer belt 24 to move back and forth after being electrified, and the horizontal distance between the two upper extrusion rollers 5 is larger than the horizontal distance between the two lower extrusion rollers 6.
The working principle of the invention is as follows: the construction waste is placed on the two cover plates 2, the construction waste can enable the compression springs 4 to contract under the action of gravity, so as to enter the main body 1, the two cover plates 2 are closed immediately, so as to avoid the splashing of waste fragments, the construction waste entering the main body 1 can be crushed into fine blocks under the extrusion of the two upper extrusion rollers 5 and the two lower extrusion rollers 6, simultaneously, the metal in the construction waste can be separated, then the construction waste falls onto the two permanent magnetic plates 15 under the combined action of the gravity and the spiral guide strip 7, then the permanent magnetic plates 15 can adsorb the metal in the construction waste, the non-metal part can be discharged from the lower discharge port 20 under the combined action of the lower guide plate 16 and the conveyer belt 24, dust falls under the action of the spray pipe 22 while discharging, and the metal on the permanent magnetic plates 15 can be scraped by periodically starting the transmission motor 19, and is thus discharged from the two upper discharge ports 18 through the two upper separation plates 17.
The foregoing is a preferred embodiment of the present invention, and it will be apparent to those skilled in the art that variations, modifications, substitutions and alterations can be made in the embodiment without departing from the principles and spirit of the invention.
Claims (2)
1. The utility model provides a recovery unit is smashed to construction waste, includes main part (1), apron (2), brace table (3), compression spring (4), goes up squeeze roll (5), squeeze roll (6) down, spiral gib block (7), separation part (8), conveying part (9), its characterized in that: the left end and the right end of the top end of the main body (1) are respectively hinged with a cover plate (2), the left end and the right end of the inside of the main body (1) are respectively fixed with a horizontal supporting table (3), two compression springs (4) are respectively fixed on the two supporting tables (3), the top end of each compression spring (4) is fixed with the bottom ends of the two cover plates (2), two horizontal upper extrusion rollers (5) are installed on the upper part of the main body (1), two horizontal lower extrusion rollers (6) are installed on the lower part of the main body (1), spiral guide strips (7) are respectively fixed on the outer walls of the two upper extrusion rollers (5) and the two lower extrusion rollers (6), a separation part (8) is installed inside the main body (1), and a conveying part (9) is installed at the bottom of the main body (1);
the separation part (8) comprises a separation tile (10), a transmission screw (11), a three-fork scraper (12), an upper guide plate (13), a support rod (14), a permanent magnet plate (15), a lower guide plate (16), an upper separation plate (17), an upper discharge hole (18) and a transmission motor (19), wherein the separation tile (10) horizontally extending is fixed inside the main body (1), the transmission screw (11) is hinged inside the separation tile (10) through a bearing, the transmission screw (11) is connected with the vertical three-fork scraper (12) in a threaded manner, the upper guide plate (13) is respectively fixed at the front end and the rear end of the separation tile (10), the support rod (14) horizontally extending is fixed inside the main body (1), the permanent magnet plate (15) is respectively fixed on the support rod (14), and the lower guide plate (16) is respectively fixed at the left end and the right end inside the main body (1), the front end and the rear end of each of the two lower guide plates (16) are respectively fixed with an upper separation plate (17), the front end and the rear end of the bottom of the main body (1) are respectively provided with an upper discharge port (18), the two upper separation plates (17) are fixedly connected with the bottom ends of the two upper discharge ports (18), the front end of the main body (1) is fixed with a transmission motor (19), a rotating shaft of the transmission motor (19) is fixed with the front end of a transmission screw rod (11), and the transmission motor (19) can drive the three-fork scraper (12) to move back and forth along the two permanent magnet plates (15) after being electrified;
conveying part (9) are including lower discharge gate (20), lower separator plate (21), shower (22), bearing roller (23), conveyer belt (24), drag motor (25), main part (1) front end is opened has lower discharge gate (20), lower discharge gate (20) bottom mounting has a lower separator plate (21) of slope, both ends are fixed with shower (22) that a level extends about lower discharge gate (20), two bearing roller (23) that extend are installed through the bearing to main part (1) bottom, two the cover has a horizontally conveyer belt (24) on bearing roller (23), main part (1) right-hand member front portion is installed and is dragged motor (25), the pivot of dragging motor (25) is fixed mutually with anterior bearing roller (23) of main part (1).
2. The construction waste crushing and recycling device according to claim 1, wherein: the two upper extrusion rollers (5) and the two lower extrusion rollers (6) are externally connected with a transmission mechanism, the spray pipe (22) is externally connected with a water supply pump machine, the dragging motor (25) can drive the conveying belt (24) to move back and forth after being electrified, and the horizontal distance between the two upper extrusion rollers (5) is larger than the horizontal distance between the two lower extrusion rollers (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010892163.0A CN112169889B (en) | 2020-08-31 | 2020-08-31 | Recovery unit is smashed to building rubbish |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010892163.0A CN112169889B (en) | 2020-08-31 | 2020-08-31 | Recovery unit is smashed to building rubbish |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112169889A CN112169889A (en) | 2021-01-05 |
| CN112169889B true CN112169889B (en) | 2022-01-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010892163.0A Active CN112169889B (en) | 2020-08-31 | 2020-08-31 | Recovery unit is smashed to building rubbish |
Country Status (1)
| Country | Link |
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| CN (1) | CN112169889B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115635024A (en) * | 2022-10-21 | 2023-01-24 | 红旗电缆电器仪表集团有限公司 | Processing method and processing equipment for long-service-life environment-friendly energy storage cable |
| CN120169481A (en) * | 2025-05-22 | 2025-06-20 | 雅安职业技术学院 | Automobile integrated circuit board recycling device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108906180B (en) * | 2018-06-26 | 2020-10-30 | 浙江农林大学 | A construction waste crushing and separating baler |
| CN109731659B (en) * | 2019-01-29 | 2020-12-01 | 山东仁合新材料科技有限公司 | Reinforced concrete's rubbing crusher |
| CN110605160A (en) * | 2019-09-16 | 2019-12-24 | 中国电建集团华东勘测设计研究院有限公司 | Device and method for crushing construction waste blocks and recovering metal |
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2020
- 2020-08-31 CN CN202010892163.0A patent/CN112169889B/en active Active
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| Publication number | Publication date |
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| CN112169889A (en) | 2021-01-05 |
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Effective date of registration: 20211222 Address after: 530000 No. 1204, block C, Jinsheng Fortune Plaza, No. 15, Jinsha Avenue, Liangqing District, Nanning City, Guangxi Zhuang Autonomous Region Applicant after: Guangxi zetao Building Materials Technology Co.,Ltd. Address before: No.27, Shanda South Road, Jinan City, Shandong Province (Shandong University) Applicant before: Sheng Jiling |
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