CN109092427A - A kind of building waste grinding device and the method using building waste filling foundation pit - Google Patents
A kind of building waste grinding device and the method using building waste filling foundation pit Download PDFInfo
- Publication number
- CN109092427A CN109092427A CN201810881790.7A CN201810881790A CN109092427A CN 109092427 A CN109092427 A CN 109092427A CN 201810881790 A CN201810881790 A CN 201810881790A CN 109092427 A CN109092427 A CN 109092427A
- Authority
- CN
- China
- Prior art keywords
- building waste
- broken
- cracking cabin
- pulverization roller
- block
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- 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
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C19/00—Other disintegrating devices or methods
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/18—Making embankments, e.g. dikes, dams
-
- 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
Abstract
The invention discloses a kind of building waste grinding device and utilize the method for building waste filling foundation pit, aim to ensure that building waste is pulverized, and facilitate filling foundation pit, its key points of the technical solution are that: a kind of building waste grinding device, pulverizer is provided with the first pulverization roller and the second pulverization roller for crushing building waste, crushing tooth is equipped between first pulverization roller and the second pulverization roller, pulverizer is provided with disintegrating mechanism, disintegrating mechanism includes set on the cracking cabin for crushing rack, feed pipe set on cracking cabin upper surface, it is rotationally connected with the broken block of cracking cabin, in cracking cabin and drive the driving motor for being crushed block rotation, block upper surface is crushed close to cracking cabin upper bottom surface, building waste is across broken block upper surface and cracking cabin upper bottom surface, broken block between cracking cabin upper bottom surface relative to relatively rotating and by the further powder of building waste It is broken.The present invention, which can ensure to crush building waste, to be completed.
Description
Technical field
The invention belongs to building fields, more specifically, it relates to a kind of building waste grinding device and utilization building rubbish
The method of rubbish filling foundation pit.
Background technique
Building waste refers to that construction, all kinds of buildings of unit in charge of construction or personal team, structures, pipe network etc. are built, spread
If or remove, in reparative processes produced by dregs, spoir, rejected material, remaining mud and other wastes.
And many building wastes are all discarded now, and heap comes, and building waste is caused to occupy a large amount of places.Due to
Many building waste volumes are larger, cause building waste that cannot normally utilize, and utilize building waste laying road or beat coagulation
It when earth foundation, after needing to remove bulky building waste, could use, and existing many for being crushed building waste
Disintegrating apparatus, be not easy to complete construction waste crushing, still the biggish building waste of resid vol, worker needed to be sieved again
Select bulky building waste.
Therefore it needs to propose the new technical solution of one kind to solve the above problems.
Summary of the invention
In view of the deficiencies of the prior art, the present invention intends to provide a kind of building waste grinding device and utilization
The method of building waste filling foundation pit, it can be ensured that building waste is crushed and is completed, avoids existing in pulverized building waste
The building waste of large volume.
To achieve the above object, it the present invention provides the following technical scheme that a kind of building waste grinding device, including crushes
Rack, the pulverizer set up the first pulverization roller and the second pulverization roller for being equipped with and crushing building waste, first pulverization roller with
Second pulverization roller is provided with broken building between first pulverization roller and the second pulverization roller in being horizontally disposed with and being parallel to each other
The crushing tooth of rubbish, the pulverizer erection are equipped with the disintegrating mechanism for further crushing building waste, the disintegrating mechanism position
Immediately below the first pulverization roller and the second pulverization roller, the disintegrating mechanism includes being set to the cracking cabin for crushing rack, setting
It is placed in the cracking cabin upper surface and enters the charging of cracking cabin for the building waste between the first pulverization roller and the second pulverization roller
Manage, be rotationally connected with the cracking cabin and by broken block that building waste further crushes, be set in the cracking cabin and drive
The driving motor of the broken block rotation is moved, the broken block is fixedly connected on the driving motor output shaft, the broken block
Rotation is axial in being vertically arranged, and the broken block upper surface passes through described close to the cracking cabin upper bottom surface, institute's building waste
Between broken block upper surface and cracking cabin upper bottom surface, the broken block is relative to relative rotation between cracking cabin upper bottom surface and will build
Building refuse further crushes.
By using above-mentioned technical proposal, after building waste is fallen between the first pulverization roller and the second pulverization roller,
Entered in cracking cabin by feed pipe, and drop down onto the gap between broken block and cracking cabin upper bottom surface, while passing through driving electricity
Machine drives broken block to rotate relative to cracking cabin, makes broken block and cracking cabin grinding building waste, and be further crushed building rubbish
Rubbish, at the same building waste by broken block operating on centrifugal force and the broken block that slips away, and drop down onto below broken block.
The present invention is further arranged to: the cracking cabin upper bottom surface is tilted down setting away from feed pipe direction, described
Broken block upper surface is tilted down setting away from centerline direction, between the broken block upper surface and the cracking cabin
Distance is gradually reduced towards the direction away from feed pipe.
By using above-mentioned technical proposal, by being crushed the distance between block upper surface and cracking cabin towards away from feed pipe
Direction is gradually reduced, and can be convenient the gap that building waste enters between broken block and cracking cabin upper bottom surface, while ensuring to build
Rubbish is ground broken, and the upper surface of broken block is tilted down setting away from centerline direction, and building waste is facilitated to be discharged
Broken block.
The present invention is further arranged to: the broken block upper surface is fixed with several for being crushed the first of building waste
Broken protrusion, the cracking cabin upper bottom surface are fixed with several the second broken protrusions.
By using above-mentioned technical proposal, the first broken protrusion and second broken when broken block is rotated relative to cracking cabin
Protrusion contacts at building waste and relative to building waste movement, to pass through, first is broken raised and second is broken raised further
Broken building waste.
The present invention is further arranged to: the cracking cabin, which is provided with, controls the control assembly that broken block moves up and down, described
Control assembly includes being slidably connected to the cracking cabin along the vertical direction and extending to the broken frame on the outside of the cracking cabin, two
Be opened in the cracking cabin and extend on the outside of cracking cabin for broken frame respectively sliding slot, two be fixedly connected on the cracking cabin
Outside and the fixed block being located above corresponding sliding slot, two be rotationally connected with the lead screw of the fixed block, two points respectively
The feed screw nut for not being fixedly connected on the broken frame and connecting with corresponding threads of lead screw, the lead screw is in be vertically arranged, described
Driving motor is fixedly connected on the broken frame.
By using above-mentioned technical proposal, broken frame is driven to move up and down to adjust broken block and cracking cabin by lead screw
Gap between upper bottom surface, the partial size after reaching control construction waste crushing.
The present invention is further arranged to: the lead screw upper surface is fixedly connected with the handwheel for driving the lead screw rotation.
By using above-mentioned technical proposal, driving lead screw rotation is facilitated by handwheel.
The present invention is further arranged to: the broken frame be fixedly connected with fit in the cracking cabin inner sidewall and prevent by
It crushes building waste and drops down onto the jointing plate on the outside of cracking cabin from sliding slot.
By using above-mentioned technical proposal, by jointing plate it is possible to prevente effectively from the building waste in cracking cabin passes through sliding slot
It drops down on the outside of cracking cabin.
The present invention is further arranged to: the building waste discharge cracking cabin being conveniently broken is provided with below the cracking cabin
Reclaiming plate, the reclaiming plate section is in U-shape setting, and the reclaiming plate length direction is tilted down setting.
By using above-mentioned technical proposal, building waste is facilitated to drop down on reclaiming plate from cracking cabin, and passes through reclaiming plate 17
It slides out, facilitates and receive broken building waste.
The present invention is further arranged to: step S1, building waste is crushed via building waste grinding device；Step S2, will
Pulverized building waste transports to foundation pit and fills place；Step S3, it is laid with building waste in foundation pit and is incited somebody to action by road roller
Building waste compacting.
The present invention is further arranged to: in step s3, the specific steps of filling building waste in foundation pit are as follows: first in base
It cheats bottom surface and is laid with one layer of geotextiles, be then laid with one layer of building waste in Geotextile again, and be compacted by road roller, then so
One layer of building waste is re-layed being compacted building waste surface afterwards, and is compacted by road roller, and the building waste of bottom is grain
Diameter is the building waste of 20-40mm, and surface layer building waste is the building waste that partial size is 10-20mm.
By using above-mentioned technical proposal, the method for above-mentioned filling foundation pit is utilized, it can be ensured that foundation pit is compacted, and base
Building waste is laid with smooth in cheating, and since building waste is by set up separately, facilitates building waste to be layed in foundation pit, and subtract
The step of screening out bulky grain building waste less.
In conclusion the invention has the following advantages:
When needing broken building waste, first building waste is put between the first pulverization roller and the second pulverization roller, first crushes
Roller and the second pulverization roller be tentatively crushed to building waste, and then building waste enters cracking cabin by feed pipe, and drops down onto
It between broken block and cracking cabin upper bottom surface, is then crushed block and is rotated relative to cracking cabin, be crushed block and cracking cabin grinding building rubbish
Rubbish, and be further crushed building waste, at the same building waste by broken block operating on centrifugal force and the broken block that slips away, and drop down onto brokenly
Below fragment, the building waste being then broken is ejected by reclaiming plate.
Detailed description of the invention
Fig. 1 is the perspective view of the present embodiment；
Fig. 2 is the cross-sectional view of the present embodiment；
Fig. 3 is the portion the A enlarged view of Fig. 2.
Detailed description of the invention: 1, rack is crushed；2, the first pulverization roller；3, the second pulverization roller；4, crushing tooth；5, cracking cabin；6, into
Expects pipe；7, it is crushed block；8, driving motor；9, the first broken protrusion；10, the second broken protrusion；11, it is crushed frame；12, sliding slot；13,
Fixed block；14, lead screw；15, feed screw nut；16, handwheel；17, reclaiming plate；18, jointing plate.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.
Wherein identical components are presented with like reference characters.It should be noted that word used in the following description
Language "front", "rear", "left", "right", "up" and "down" refer to the direction in attached drawing, word " bottom surface " and " top surface ", "inner" and
"outside" refers respectively to the direction towards or away from geometric center of specific component.
Embodiment one: as depicted in figs. 1 and 2, a kind of building waste grinding device, including rack 1 is crushed, crush rack 1
It is rotatably connected to the first pulverization roller 2 and the second pulverization roller 3, the first pulverization roller 2 is in horizontally arranged with the second pulverization roller 3, and the
The rotation of one pulverization roller 2 is axially in horizontally disposed, if the surface of the first pulverization roller 2 and the second pulverization roller 3 is provided with dry grinding
Tooth 4,4 length direction of crushing tooth is along corresponding first pulverization roller 2 and the setting of 3 length direction of the second pulverization roller.In this way building waste by
Enter between the first pulverization roller 2 and the second pulverization roller 3 above first pulverization roller 2 and the second pulverization roller 3, and broken by crushing tooth 4
Broken building waste.
In order to ensure building waste is completely broken, as shown in Fig. 2, crush rack 1 be provided with building waste is further
The crushing mechanism of crushing, crushing mechanism are located at the underface of the first pulverization roller 2 and the second pulverization roller 3, and crushing mechanism includes fixing
In the cracking cabin 5 of broken rack, the upper surface of cracking cabin 5 is fixedly connected for between the first pulverization roller 2 and the second pulverization roller 3
Building waste enter the feed pipe 6 of cracking cabin 5, and be provided in cracking cabin 5 further be crushed building waste broken block
7, it is crushed the setting cylindrical of block 7, and broken block 7 is rotationally connected with cracking cabin 5, is crushed the center of rotation and cracking cabin 5 of block 7
Center line is located at same vertical line position, is crushed upper bottom surface of 7 upper surface of block close to cracking cabin 5, and broken 7 upper surface of block
There are the gap that building waste passes through between 5 upper bottom surface of cracking cabin, the drive for driving broken block 7 to rotate is provided in cracking cabin 5
Dynamic motor 8.In this way after building waste is fallen between the first pulverization roller 2 and the second pulverization roller 3, entered by feed pipe 6
In cracking cabin 5, and the gap between 5 upper bottom surface of broken block 7 and cracking cabin is dropped down onto, while broken by the driving of driving motor 8
Block 7 is rotated relative to cracking cabin 5, so that broken block 7 and cracking cabin 5 is ground building waste, and be further crushed building waste, simultaneously
Building waste by broken block 7 operating on centrifugal force and the broken block 7 that slips away, and drop down onto 7 lower section of broken block.
As shown in Fig. 2, the upper bottom surface of cracking cabin 5 is tilted down setting away from 6 direction of feed pipe, the upper table of broken block 7
Face is also tilted down setting away from centerline direction, and broken the distance between 7 upper surface of block and cracking cabin 5 court deviate from into
The direction of expects pipe 6 is gradually reduced.In this way by being crushed the distance between 7 upper surface of block and cracking cabin 5 towards the side for deviating from feed pipe 6
To being gradually reduced, the gap that building waste enters between broken 5 upper bottom surface of block 7 and cracking cabin can be convenient, while ensuring to build
Rubbish is ground broken, and the upper surface of broken block 7 is tilted down setting away from centerline direction, and building waste is facilitated to be discharged
Broken block 7.
Be broken efficiency to improve building waste, as shown in Fig. 2, the upper surface of broken block 7 be fixed with several first
Broken protrusion 9, and the upper bottom surface of cracking cabin 5 is fixed with several the second broken protrusions 10, and the first broken protrusion 9 and second is broken
Broken raised 10 are connected to building waste surface, and when broken block 7 is rotated relative to cracking cabin 5 first broken protrusion 9 and
Second broken protrusion 10 contacts at building waste and relative to building waste movement, thus broken by the first broken protrusion 9 and second
Broken raised 10 are further crushed building waste.
In order to facilitate adjusting and controlling the gap between 5 upper bottom surface of broken block 7 and cracking cabin, as shown in Figures 2 and 3, break
Broken storehouse 5, which is provided with, controls the control assembly that broken block 7 moves up and down, and control assembly is described including being slidably connected to along the vertical direction
The broken frame 11 of cracking cabin 5 is crushed the outside that frame 11 extends to cracking cabin 5 in the both ends for being horizontally disposed with, and being crushed frame 11,
Cracking cabin 5 is opened up there are two the sliding slot 12 worn respectively for broken 11 both ends of frame, and 5 lateral wall of cracking cabin is fixedly connected with that there are two solid
Determine block 13, two fixed blocks 13 are located at the surface of corresponding sliding slot 12, and each fixed block 13 is rotatably connected to lead screw 14,
Lead screw 14 is in be vertically arranged, and the both ends of cracking cabin 5 are respectively fixedly connected with the lead screw spiral shell being threadedly coupled for corresponding lead screw 14
Mother 15, the upper surface of lead screw 14 are fixedly connected with the handwheel 16 for facilitating driving lead screw 14 to rotate.Silk is driven by handwheel 16 in this way
Thick stick 14 rotates, and drives broken frame 11 to move up and down to adjust between broken 5 upper bottom surface of block 7 and cracking cabin by lead screw 14
Gap, the partial size after reaching control construction waste crushing.
The building waste in cracking cabin 5 drops down onto 5 outside of cracking cabin by sliding slot 12 in order to prevent, as shown in figure 3, broken frame
11 are fixedly connected with the jointing plate 18 for being affixed on 5 inner sidewall of cracking cabin, and jointing plate 18 fits in 5 inner sidewall of cracking cabin, and covers cunning
Slot 12 passes through jointing plate 18 in this way it is possible to prevente effectively from the building waste in cracking cabin 5 is dropped down onto outside cracking cabin 5 by sliding slot 12
Side.
As shown in Figure 1, the lower section of cracking cabin 5 is provided with the reclaiming plate for the building waste discharge cracking cabin 5 being conveniently broken
17, reclaiming plate 17, which is fixed on, crushes rack 1, and reclaiming plate 17 is tilted down setting, and the section of reclaiming plate 17 is in U
Shape setting.Facilitate building waste to drop down on reclaiming plate 17 from cracking cabin 5 in this way, and slid out by reclaiming plate 17, is conveniently connect
Receive broken building waste.
When needing broken building waste, first building waste is put between the first pulverization roller 2 and the second pulverization roller 3, the
One pulverization roller 2 and the second pulverization roller 3 be tentatively crushed to building waste, and then building waste enters broken by feed pipe 6
Storehouse 5, and drop down between 5 upper bottom surface of broken block 7 and cracking cabin, it is then crushed block 7 and is rotated relative to cracking cabin 5, be crushed block 7 and break
Building waste is ground in broken storehouse 5, and is further crushed building waste, at the same building waste by broken block 7 operating on centrifugal force and slide
From broken block 7, and broken 7 lower section of block is dropped down onto, the building waste being then broken is ejected by reclaiming plate 17.
Embodiment two: a method of foundation pit being filled using building waste, is a kind of building stated using embodiment one
Device for pulverizing rubbish carry out building waste pulverization process, with embodiment one the difference is that:
Step S1, building waste is crushed via a kind of building waste grinding device of embodiment one；
Step S2, pulverized building waste is transported to foundation pit and fills place；
Step S3, it is laid with building waste in foundation pit and is compacted building waste by road roller.
And the specific steps of building waste in step s3, are filled in foundation pit are as follows: be laid with one layer in foundation pit bottom surface first
Then geotextiles are laid with one layer of building waste in Geotextile again, and are compacted by road roller, be subsequently compacted building
Rubbish surface re-lays one layer of building waste, and is compacted by road roller, and the building waste of bottom is that partial size is building for 20-40mm
Building refuse, surface layer building waste are the building wastes that partial size is 10-20mm.
Utilizing the method for above-mentioned filling foundation pit, it can be ensured that foundation pit is compacted, and building waste laying is smooth in foundation pit,
And it since building waste facilitates building waste to be layed in foundation pit by set up separately, and reduces and screens out bulky grain building waste
The step of.
Specific embodiment is only explanation of the invention, is not limitation of the present invention, those skilled in the art
It can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as in this hair
All by the protection of Patent Law in bright scope of the claims.
Claims (9)
1. a kind of building waste grinding device, including rack (1) is crushed, the crushing rack (1) is provided with crushing building waste
The first pulverization roller (2) and the second pulverization roller (3), first pulverization roller (2) and the second pulverization roller (3) are in horizontally disposed and phase
It is mutually parallel, the crushing tooth (4) of broken building waste is provided between first pulverization roller (2) and the second pulverization roller (3),
Be characterized in that: the crushing rack (1) is provided with the disintegrating mechanism for further crushing building waste, and the disintegrating mechanism is located at
Immediately below first pulverization roller (2) and the second pulverization roller (3), the disintegrating mechanism includes being set to breaking for crushing rack (1)
Broken storehouse (5) is set to the cracking cabin (5) upper surface and for the building rubbish between the first pulverization roller (2) and the second pulverization roller (3)
Rubbish enters the feed pipe (6) of cracking cabin (5), is rotationally connected with the cracking cabin (5) and further crushes building waste broken
Fragment (7), the driving motor (8) for being set in the cracking cabin (5) and driving broken block (7) rotation, the broken block
(7) it is fixedly connected on the driving motor (8) output shaft, axial broken block (7) rotation is in be vertically arranged, the broken block
(7) close to the cracking cabin (5) upper bottom surface, the building waste passes through broken block (7) upper surface and is crushed for upper surface
Between storehouse (5) upper bottom surface, the broken block (7) relative between cracking cabin (5) upper bottom surface relatively rotate and by building waste into
One step crushes.
2. a kind of building waste grinding device according to claim 1, it is characterised in that: cracking cabin (5) upper bottom surface
It is tilted down setting away from feed pipe (6) direction, broken block (7) upper surface is tilted down away from centerline direction and sets
It sets, the distance between broken block (7) upper surface and the cracking cabin (5) gradually subtract towards the direction away from feed pipe (6)
It is small.
3. a kind of building waste grinding device according to claim 2, it is characterised in that: broken block (7) upper surface
Several first broken raised (9) for being crushed building waste are fixed with, cracking cabin (5) upper bottom surface is fixed with several
Second broken raised (10).
4. a kind of building waste grinding device according to claim 1, it is characterised in that: the cracking cabin (5) is provided with
The control assembly that broken block (7) move up and down is controlled, the control assembly includes being slidably connected to described be crushed along the vertical direction
Storehouse (5) and the broken frame (11) extended on the outside of the cracking cabin (5), two be opened in the cracking cabin (5) and respectively for broken
Sliding slot (12) that broken frame (11) extends on the outside of cracking cabin (5), two be fixedly connected on the outside of the cracking cabin (5) and position respectively
Fixed block (13) above corresponding sliding slot (12), two be rotationally connected with the lead screw (14) of the fixed block (13), two respectively
It is a be respectively fixedly connected in the broken frame (11) and with corresponding lead screw (14) be threadedly coupled feed screw nut (15), the lead screw
(14) in being vertically arranged, the driving motor (8) is fixedly connected on the broken frame (11).
5. a kind of building waste grinding device according to claim 4, it is characterised in that: lead screw (14) upper surface is solid
Surely it is connected with the handwheel (16) for driving lead screw (14) rotation.
6. a kind of building waste grinding device according to claim 5, it is characterised in that: the broken frame (11) is fixed to be connected
It is connected to and fits in the cracking cabin (5) inner sidewall and prevent pulverized building waste from dropping down on the outside of cracking cabin (5) from sliding slot (12)
Jointing plate (18).
7. a kind of building waste grinding device according to claim 6, it is characterised in that: set below the cracking cabin (5)
It is equipped with the reclaiming plate (17) for building waste discharge cracking cabin (5) being conveniently broken, reclaiming plate (17) section, which is in U-shape, to be set
It sets, reclaiming plate (17) length direction is tilted down setting.
8. a kind of method using building waste filling foundation pit, it is characterised in that: step S1, building waste is via building waste powder
Crushing device crushes；Step S2, pulverized building waste is transported to foundation pit and fills place；Step S3, it is laid with and builds in foundation pit
Building waste is simultaneously compacted by road roller by building refuse.
9. a kind of method using building waste filling foundation pit according to claim 8, it is characterised in that: in step S3
In, the specific steps of filling building waste in foundation pit are as follows: one layer of geotextiles are laid in foundation pit bottom surface first, then again in geotextiles
Surface is laid with one layer of building waste, and by road roller compacting, subsequently builds being compacted building waste surface and re-lay one layer
Building refuse, and be compacted by road roller, the building waste of bottom is the building waste that partial size is 20-40mm, surface layer building waste
It is the building waste that partial size is 10-20mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810881790.7A CN109092427A (en) | 2018-08-06 | 2018-08-06 | A kind of building waste grinding device and the method using building waste filling foundation pit |
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| CN201810881790.7A CN109092427A (en) | 2018-08-06 | 2018-08-06 | A kind of building waste grinding device and the method using building waste filling foundation pit |
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| CN111298883A (en) * | 2020-04-09 | 2020-06-19 | 刘清华 | Be used for auto parts insulating varnish material treatment facility |
| CN114570740A (en) * | 2022-02-17 | 2022-06-03 | 青岛振晟实业有限公司 | Method for treating construction waste for environmental protection engineering to be recycled to road base |
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| CN114570740A (en) * | 2022-02-17 | 2022-06-03 | 青岛振晟实业有限公司 | Method for treating construction waste for environmental protection engineering to be recycled to road base |
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Application publication date: 20181228 |