CN113019570A - Construction waste recovery device - Google Patents
Construction waste recovery device Download PDFInfo
- Publication number
- CN113019570A CN113019570A CN202110162256.2A CN202110162256A CN113019570A CN 113019570 A CN113019570 A CN 113019570A CN 202110162256 A CN202110162256 A CN 202110162256A CN 113019570 A CN113019570 A CN 113019570A
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- Prior art keywords
- crushing shaft
- crushing
- construction waste
- shell
- fixedly installed
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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
- 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
- B02C13/06—Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft with beaters rigidly connected to the rotor
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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
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/20—Disintegrating by mills having rotary beater elements ; Hammer mills with two or more co-operating rotors
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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
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/26—Details
- B02C13/28—Shape or construction of beater elements
- B02C13/2804—Shape or construction of beater elements the beater elements being rigidly connected to the rotor
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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
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/26—Details
- B02C13/286—Feeding or discharge
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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
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/26—Details
- B02C13/30—Driving mechanisms
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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
- 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
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- 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
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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
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/26—Details
- B02C13/286—Feeding or discharge
- B02C2013/28609—Discharge means
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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
- 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
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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
- B02C2201/00—Codes relating to disintegrating devices adapted for specific materials
- B02C2201/06—Codes relating to disintegrating devices adapted for specific materials for garbage, waste or sewage
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to the technical field of recovery devices, and discloses a construction waste recovery device which comprises a shell, wherein the middle part of the upper surface of the shell is communicated with a feed hopper, a first crushing shaft and a second crushing shaft which are symmetrically distributed in front of and behind the same horizontal plane are rotatably arranged at the upper part in the shell, the first crushing shaft and the second crushing shaft are transversely distributed, a plurality of groups of crushing blades which are uniformly distributed are fixedly arranged on the outer side surfaces of the first crushing shaft and the second crushing shaft, the crushing blades on the first crushing shaft and the second crushing shaft are mutually staggered, and a partition plate with a symmetrical inclined plane structure is fixedly arranged at the upper part in the shell. The invention has the beneficial effects that: the effective breakage of rubbish is realized, broken efficiency is improved and the device damage caused by the rubbish descending process is avoided, the long-term use is facilitated, the classified recovery of construction waste is realized, the continuous crushing can be realized in the garbage classified recovery process, the continuous processing is facilitated, and the recovery efficiency is improved.
Description
Technical Field
The invention relates to the technical field of recovery devices, in particular to a construction waste recovery device.
Background
The construction waste refers to dregs, spoil, waste materials, residual mud and other wastes generated in the process of constructing, laying, dismantling and repairing various buildings, structures, pipe networks and the like by construction, construction units or individuals, along with the acceleration of industrialization and urbanization, the construction industry also rapidly develops, along with the increase of the generated construction waste, the quantity of the construction waste accounts for more than 1/3 of the total quantity of the municipal waste. The construction waste is rarely recycled, and some construction waste is even directly used for filling a pit and is thrown away as construction waste.
In suburbs, pits, ponds and ditches are the first-selected places of stacking of building rubbish, the regulation and storage capacity of a water body is reduced, bricks in the building rubbish, which can lead to reduction of ground surface drainage and flood discharge capacity, tiles can be repeatedly used after being cleaned, waste wood in construction engineering is reused as templates and building materials, and is used as a papermaking raw material or a fuel through a wood crusher, a large amount of metal materials are mixed in the building rubbish, waste is not generated when the waste wood is directly discarded, so that the metal materials in the rubbish are separated and selected, time and labor are excessively wasted when manual separation and selection are performed, and the problems of stacking of the building rubbish and the like are not beneficial to great threat to the health of workers when the selection is performed, and manual selection is performed.
Disclosure of Invention
The present invention is directed to a construction waste recycling device to solve the above problems.
In order to achieve the purpose, the invention provides the following technical scheme:
a construction waste recovery device comprises a shell, wherein the middle part of the upper surface of the shell is communicated with a feed hopper, the upper part in the shell is rotatably provided with a first crushing shaft and a second crushing shaft which are symmetrically distributed around the same horizontal plane, the first crushing shaft and the second crushing shaft are transversely distributed, the outer side surfaces of the first crushing shaft and the second crushing shaft are fixedly provided with a plurality of groups of crushing blades which are uniformly distributed, the crushing blades on the first crushing shaft and the second crushing shaft are mutually staggered, the upper part in the shell is fixedly provided with a partition plate with a symmetrical inclined plane structure, the middle part of the upper surface of the partition plate is provided with a semicircular groove, a material conveying auger which is transversely distributed is rotatably arranged in the groove, the middle part of the lower surface of the partition plate is provided with two groups of blanking holes which are symmetrically distributed and penetrate through the partition plate along the vertical direction, the lower part of the, all rotate on the second bracing piece and install the electro-magnet adsorption plate, the electro-magnet adsorption plate all fixed mounting has the spliced pole that stretches out to the outside around the one end that is close to each other.
As a further scheme of the invention: first crushing roller with the second crushing roller all passes casing left side wall and first crushing roller and second crushing roller left and is done single equal fixed mounting and have a belt pulley that is located same vertical bottom, and the belt pulley rotates jointly to be connected with the belt, and first crushing roller and second crushing roller pass through the belt and rotate and connect.
As a further scheme of the invention: the horizontal mounting plate is fixedly mounted on the front side of the upper portion of the left side face of the shell, a first motor with an output shaft extending towards the right side is fixedly mounted in the middle of the upper surface of the mounting plate, and the output shaft of the first motor is fixedly connected with the first crushing shaft.
As a further scheme of the invention: the screw blades at the two ends of the material conveying auger are arranged in opposite structures, the left end of the material conveying auger penetrates through the left side wall of the shell and is fixedly connected with a second motor fixedly arranged in the middle of the left side wall of the shell, and a first guide plate with a herringbone cross section and fixedly arranged on the shell is arranged above the material conveying auger.
As a further scheme of the invention: casing lower part fixed mounting has two sets of first bracing pieces that distribute along the fore-and-aft direction and lie in under the blanking hole, and fixed mounting has the supporting disk of two sets of front and back symmetric distributions on the first bracing piece, and the common fixed mounting of supporting disk has the multiunit to be circular evenly distributed and is on a parallel with the dispersion pole of first bracing piece.
As a further scheme of the invention: the baffle lower surface middle part fixed mounting has vertical electric telescopic handle, and electric telescopic handle lower extreme fixed mounting has the connecting plate that distributes along the fore-and-aft direction, and the equal fixed mounting of connecting plate front and back end has the spacing frame of frame type that stretches out to the left and right sides, spliced pole slidable mounting in spacing.
As a still further scheme of the invention: the discharge gate has all been seted up to lateral wall lower part about the casing, is provided with the second baffle that inclines to the outside and stretch out the casing in the discharge gate, and casing lower surface middle part is provided with along the gliding collecting box of fore-and-aft direction, and the collecting box is located the one end below that the electro-magnet adsorption plate is close to each other.
Compared with the prior art, the invention has the beneficial effects that: by arranging the first guide plate, the first crushing shaft and the second crushing shaft, when the garbage crusher is used, the first motor drives the first crushing shaft and the second crushing shaft to rotate through the belt, the first crushing shaft and the second crushing shaft drive the crushing blades to crush the building garbage, the crushed garbage falls onto the partition plate, the garbage is prevented from directly falling onto the conveying auger through the first guide plate, the garbage is effectively crushed, the crushing efficiency is improved, the damage to a device caused by the garbage falling process is avoided, and the garbage crusher is favorable for long-term use; by arranging the partition plate, the material conveying auger, the dispersing rod and the electromagnet adsorption plate, the second motor drives the material conveying auger to rotate so as to convey the crushed garbage to the blanking holes on two sides, at the moment, the electric telescopic rod extends downwards to further drive the electromagnet adsorption plate to rotate to be in an inwards inclined state and electrify the electromagnet adsorption plate, the crushed garbage falls downwards through the blanking holes, the garbage is dispersed and falls on the electromagnet adsorption plate after entering the dispersing rod, scrap iron is adsorbed by the electromagnet adsorption plate, the rest garbage falls into the collection box along the electromagnet adsorption plate, when more scrap iron is adsorbed on the electromagnet adsorption plate, the second motor stops rotating, the electric telescopic rod contracts upwards, so that the electromagnet adsorption plate rotates to be in an outwards inclined state, at the moment, the electromagnet adsorption plate is powered off, and the scrap iron enters a preset container along the electromagnet adsorption plate and the second guide plate, the realization is retrieved the classification of building waste, and can last smashing at the in-process that waste classification retrieved, is favorable to continuous processing, has improved recovery efficiency.
Drawings
Fig. 1 is a front view of a construction waste recycling apparatus.
Fig. 2 is a sectional view of a first pulverizing shaft and a second pulverizing shaft in a construction waste recovery apparatus.
Fig. 3 is an enlarged view at a1 in fig. 1.
Fig. 4 is a schematic structural view of a dispersion rod in a construction waste recycling apparatus.
Fig. 5 is a schematic structural view of a position-limiting frame in the construction waste recycling device.
Wherein: 1. a housing; 2. a feed hopper; 3. mounting a plate; 4. a first motor; 5. a belt pulley; 6. a belt; 7. a first crushing shaft; 8. a second crushing shaft; 9. crushing the leaves; 10. a first guide plate; 11. a partition plate; 12. a groove; 13. a material conveying auger; 14. a blanking hole; 15. a second motor; 16. a first support bar; 17. a support disc; 18. a dispersion rod; 19. a second support bar; 20. an electromagnet adsorption plate; 21. connecting columns; 22. an electric telescopic rod; 23. a connecting plate; 24. a limiting frame; 25. a discharge port; 26. a second guide plate; 27. and a collection box.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Example one
Referring to fig. 1-3, a construction waste recycling device comprises a housing 1, a feed hopper 2 is communicated with the middle of the upper surface of the housing 1, a first crushing shaft 7 and a second crushing shaft 8 which are symmetrically distributed in front and at the back of the same horizontal plane are rotatably installed on the upper part in the housing 1, the first crushing shaft 7 and the second crushing shaft 8 are transversely distributed, a plurality of groups of crushing blades 9 which are uniformly distributed are fixedly installed on the outer side surfaces of the first crushing shaft 7 and the second crushing shaft 8, the crushing blades 9 on the first crushing shaft 7 and the second crushing shaft 8 are mutually staggered, the first crushing shaft 7 and the second crushing shaft 8 both penetrate the left side wall of the housing 1 leftwards, belt pulleys 5 which are positioned in the same vertical bottom surface are fixedly installed on the first crushing shaft 7 and the second crushing shaft 8, the belt pulleys 5 are rotatably connected with a belt 6 together, the first crushing shaft 7 and the second crushing shaft 8 are rotatably connected through the belt 6, the horizontal mounting plate 3 is fixedly mounted on the front side of the upper portion of the left side face of the shell 1, the first motor 4 with an output shaft extending towards the right side is fixedly mounted in the middle of the upper surface of the mounting plate 3, and the output shaft of the first motor 4 is fixedly connected with the first crushing shaft 7.
A partition plate 11 with a symmetrical inclined plane structure is fixedly arranged at the upper part in the shell 1, a semicircular groove 12 is arranged in the middle of the upper surface of the partition plate 11, a material conveying auger 13 which is transversely distributed is rotatably arranged in the groove 12, helical blades at two ends of the material conveying auger 13 are arranged in opposite structures, the left end of the material conveying auger 13 penetrates through the left side wall of the shell 1 and is fixedly connected with a second motor 15 which is fixedly arranged in the middle of the left side wall of the shell 1, a first guide plate 10 which is herringbone in cross section and is fixedly arranged on the shell 1 is arranged above the material conveying auger 13, two groups of blanking holes 14 which are symmetrically distributed left and right and penetrate through the partition plate 11 in the vertical direction are arranged in the middle of the lower surface of the partition plate 11, two groups of second support rods 19 which are symmetrically distributed in the front-back direction are fixedly arranged at the lower part of the shell 1, an electromagnet adsorption, the middle part of the lower surface of the partition plate 11 is fixedly provided with a vertical electric telescopic rod 22, the lower end of the electric telescopic rod 22 is fixedly provided with a connecting plate 23 distributed along the front-back direction, the front end and the rear end of the connecting plate 23 are fixedly provided with frame-shaped limiting frames 24 extending towards the left side and the right side, and the connecting column 21 is slidably arranged in the limiting frames 24.
Example two
On the basis of embodiment one, 1 lower part fixed mounting of casing has two sets of first bracing pieces 16 that distribute and lie in blanking hole 14 under along the fore-and-aft direction, fixed mounting has two sets of front and back symmetric distribution's supporting disk 17 on the first bracing piece 16, the common fixed mounting of supporting disk 17 has the multiunit to be circular evenly distributed and be on a parallel with the dispersion pole 18 of first bracing piece 16, discharge gate 25 has all been seted up to lateral wall lower part about casing 1, be provided with the second baffle 26 that inclines to the outside and stretch out casing 1 in the discharge gate 25, casing 1 lower surface middle part is provided with along the gliding collecting box 27 of fore-and-aft direction, collecting box 27 is located the one end below that electro-magnet adsorption plate.
The working principle of the invention is as follows: when the garbage crusher is used, the first motor 4 and the second motor 15 are started, the first motor 4 drives the first crushing shaft 7 and the second crushing shaft 8 to rotate through the belt 6, construction garbage is sent into the shell 1 through the feed hopper 2, the first crushing shaft 7 and the second crushing shaft 8 drive the crushing blades 9 to crush the construction garbage, the crushed garbage falls down onto the partition plate 11, the first guide plate 10 prevents the garbage from directly falling onto the material conveying auger 13, the second motor 15 drives the material conveying auger 13 to rotate so as to convey the crushed garbage to the blanking holes 14 at two sides, the electric telescopic rod 22 extends downwards to further drive the electromagnet adsorption plate 20 to rotate to be in an inwards inclined state and electrify the electromagnet adsorption plate 20, the crushed garbage falls downwards through the blanking holes 14, the garbage enters the dispersion rod 18 to be dispersed and fall on the electromagnet adsorption plate 20, and scrap iron is adsorbed by the electromagnet adsorption plate 20, all the other rubbish falls to collection box 27 along electro-magnet adsorption plate 20 in, when adsorbing more iron fillings on electro- magnet adsorption plate 20, 15 stall of second motor, later electric telescopic handle 22 upwards contracts to make electro-magnet adsorption plate 20 rotate for the state of outside slope, to electro-magnet adsorption plate 20 outage this moment, in iron fillings got into the container that presets along electro-magnet adsorption plate 20 and second baffle 26, can realize the classification of rubbish.
Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.
Claims (7)
1. The utility model provides a construction waste recovery device, includes casing (1), its characterized in that, casing (1) upper surface middle part intercommunication has feeder hopper (2), upper portion rotates installs first crushing shaft (7) and second crushing shaft (8) that are located same horizontal plane front and back symmetric distribution in casing (1), first crushing shaft (7) and second crushing shaft (8) transverse distribution and first crushing shaft (7) and second crushing shaft (8) outside surface all fixed mounting have multiunit evenly distributed's crushing blade (9), crushing blade (9) on first crushing shaft (7) and second crushing shaft (8) are the range of staggering each other, upper portion fixed mounting has baffle (11) that have symmetrical inclined plane structure in casing (1), semicircular groove (12) have been seted up to baffle (11) upper surface middle part, transversely distributed's fortune material auger (13) are installed to recess (12) internal rotation, two sets of bilateral symmetry distribute and run through blanking hole (14) of baffle (11) along vertical direction in baffle (11) lower surface middle part, casing (1) lower part fixed mounting has two sets of second bracing pieces (19) that distribute and bilateral symmetry along the fore-and-aft direction, all rotates on second bracing piece (19) and installs electro-magnet adsorption plate (20), and the equal fixed mounting in side has spliced pole (21) that stretch out to the outside around the one end that electro-magnet adsorption plate (20) are close to each other.
2. The construction waste recycling device according to claim 1, wherein the first crushing shaft (7) and the second crushing shaft (8) both penetrate through the left side wall of the housing (1) leftwards, a belt pulley (5) located in the same vertical bottom surface is fixedly installed on each of the first crushing shaft (7) and the second crushing shaft (8), the belt pulley (5) is connected with a belt (6) in a common rotating mode, and the first crushing shaft (7) and the second crushing shaft (8) are connected with each other in a rotating mode through the belt (6).
3. The construction waste recycling device according to claim 1, wherein a horizontal mounting plate (3) is fixedly mounted on the front side of the upper portion of the left side surface of the housing (1), a first motor (4) with an output shaft extending to the right is fixedly mounted in the middle of the upper surface of the mounting plate (3), and the output shaft of the first motor (4) is fixedly connected with the first crushing shaft (7).
4. The construction waste recycling device of claim 1, wherein the helical blades at the two ends of the material conveying auger (13) are arranged in an opposite structure, the left end of the material conveying auger (13) penetrates through the left side wall of the shell (1) and is fixedly connected with a second motor (15) fixedly installed in the middle of the left side wall of the shell (1), and a first guide plate (10) which is herringbone in cross section and is fixedly installed on the shell (1) is arranged above the material conveying auger (13).
5. The construction waste recycling device according to claim 1 or 3, wherein two sets of first support rods (16) distributed along the front-back direction and located right below the blanking hole (14) are fixedly installed at the lower portion of the housing (1), two sets of support plates (17) symmetrically distributed in the front-back direction are fixedly installed on the first support rods (16), and a plurality of groups of dispersing rods (18) which are uniformly distributed in a circular shape and parallel to the first support rods (16) are fixedly installed on the support plates (17) together.
6. The construction waste recycling device according to claim 1, wherein a vertical electric telescopic rod (22) is fixedly installed in the middle of the lower surface of the partition plate (11), connecting plates (23) distributed along the front and rear directions are fixedly installed at the lower ends of the electric telescopic rods (22), frame-shaped limiting frames (24) extending to the left and right sides are fixedly installed at the front and rear ends of each connecting plate (23), and the connecting columns (21) are slidably installed in the limiting frames (24).
7. The construction waste recycling device according to claim 1, wherein the lower portion of the left and right side walls of the housing (1) is provided with a discharge port (25), a second guide plate (26) which inclines outwards and extends out of the housing (1) is arranged in the discharge port (25), the middle portion of the lower surface of the housing (1) is provided with a collection box (27) which slides along the front-back direction, and the collection box (27) is located below the end where the electromagnet absorption plates (20) are close to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110162256.2A CN113019570A (en) | 2021-02-05 | 2021-02-05 | Construction waste recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110162256.2A CN113019570A (en) | 2021-02-05 | 2021-02-05 | Construction waste recovery device |
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| Publication Number | Publication Date |
|---|---|
| CN113019570A true CN113019570A (en) | 2021-06-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110162256.2A Pending CN113019570A (en) | 2021-02-05 | 2021-02-05 | Construction waste recovery device |
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| CN (1) | CN113019570A (en) |
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| CN209934867U (en) * | 2019-04-19 | 2020-01-14 | 潍坊昌大建设集团有限公司 | Solid waste treatment device for construction |
| CN210815606U (en) * | 2019-07-30 | 2020-06-23 | 天津众达精密机械有限公司 | Broken all-in-one of shakeout for machining |
| CN212215775U (en) * | 2020-04-08 | 2020-12-25 | 江西鑫泉固废处理有限公司 | Prevent building rubbish comprehensive utilization equipment of raise dust |
| CN112090559A (en) * | 2020-08-26 | 2020-12-18 | 蔡先婷 | Construction waste is with smashing recovery unit |
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Application publication date: 20210625 |
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