CN208035000U - Recycled concrete producing device - Google Patents
Recycled concrete producing device Download PDFInfo
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- CN208035000U CN208035000U CN201820471136.4U CN201820471136U CN208035000U CN 208035000 U CN208035000 U CN 208035000U CN 201820471136 U CN201820471136 U CN 201820471136U CN 208035000 U CN208035000 U CN 208035000U
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Abstract
The utility model discloses recycled concrete producing devices, are related to chemical equipment technical field.Including supporting rack, feeder, water inlet device, material receiver, blender, material conveying pipe and liquid conducting pipes, blender includes agitator, shaft and several stirring sheets；Feeder, water inlet device, material receiver and blender are mounted on supporting rack；Liquid conducting pipes are connected to water inlet device and material receiver respectively, and material conveying pipe is connected to material receiver and blender respectively；It is equipped in shaft and scrapes rack, it includes multiple fixed disks and multiple scraping rods to scrape rack；Multiple fixed disks are mounted in shaft, and the axial line of fixed disk is overlapped with the axial line of shaft；Multiple scraping rods, which are mounted on, fixes disk, and the inner wall of scraping rod and agitator reclines, and close to the inner wall of agitator, one end of scraping rod has the wedge-shaped part that can carry out shovel action to the inner wall of agitator when shaft rotates；The recycled concrete producing device enables to aggregate accurately to be mixed with cement.
Description
Technical field
The utility model is related to chemical equipment technical fields, more particularly, to recycled concrete producing device.
Background technology
Regeneration concrete refers to the concrete prepared for aggregate with the waste concrete by broken processing.More in the world
Developed country has begun to the research of waste concrete recycling, the developmental research of regeneration concrete after World War II
The process problem that not only can fundamentally solve waste concrete, can also save natural aggregate resources, bring significant society, economy
And environmental benefit；
In order to ensure the quality of regeneration concrete, need to ensure the waste concrete even particle size for aggregate, and can fill
Divide uniform stirring, is that blender is needed to be sufficiently stirred carrying out regeneration concrete proportioning, current blender mainly leads to
The stirrer paddle with stirring sheet is crossed to be stirred, in order to ensure the normal rotation of stirrer paddle, stirring sheet and agitator it is interior
There is gap, the design to cause a part of cement that can be sticked on the inner wall of agitator in stirring so that aggregate and water between wall
Proportioning between mud can not be sufficiently stirred according to design requirement, cause regeneration concrete that design requirement is not achieved.
Utility model content
The purpose of this utility model is to provide recycled concrete producing device, which can make
Aggregate is obtained accurately to mix with cement.
To achieve the above object, the utility model provides following technical scheme：
One side according to the present utility model provides recycled concrete producing device, including supporting rack, feeder, water inlet
Device, for receiving the material receiver of material, blender, material conveying pipe and liquid conducting pipes in the feeder, wherein
The blender includes agitator, is rotatably connected in the agitator shaft and several in the shaft stir
Mix piece；
The feeder, the water inlet device and the material receiver are mounted on support frame as described above；The liquid conducting pipes
Be connected to respectively with the water inlet device and the material receiver, the material conveying pipe respectively with the material receiver and described stir
Mix bucket connection；
It is equipped in the shaft and scrapes rack, wherein the rack of scraping includes multiple fixed disks and multiple scraping rods；
There is gap between the stirring sheet end face and the inner wall of the agitator；It is more along the length direction of the shaft
A fixed disk is mounted in the shaft, and the axial line of the fixed disk is overlapped with the axial line of the shaft；Along institute
The circumferential direction of fixed disk is stated, multiple scraping rods are mounted on the fixed disk, and the scraping rod is interior with the agitator
Wall reclines, and close to the inner wall of the agitator, one end of the scraping rod has can stir described when the shaft rotates
The inner wall for mixing bucket carries out the wedge-shaped part of shovel action.
Further, the stirring sheet includes two stirring sheet ontologies and connecting plate；
Two stirring sheet ontologies be oppositely arranged on the both sides of the connecting plate so that two stirring sheet ontologies it
Between formed stirring gap.
Further, a stirring sheet ontology is equipped with multiple first interval troughs, another described stirring sheet ontology
It is equipped with multiple second interval troughs；
Multiple first interval trough interval settings, multiple second interval trough interval settings, first interval trough
It is symmetrical arranged with second interval trough.
Further, first interval trough and second interval trough are strip structure；
The end of first interval trough penetrates the periphery wall of a stirring sheet ontology, the end of second interval trough
Portion penetrates the periphery wall of another stirring sheet ontology.
Further, the feeder includes the first sub- feeder and the second sub- feeder；
The second sub- feeder is connected to the material receiver, material receiver described in the first sub- feeder face.
Further, the described second sub- feeder includes feed hopper and grinding device；
The feed hopper is connected to the grinding device.
Further, the grinding device include shell, first driving means, the second driving device, two be mounted on institute
State the gear of upper part of the housing and two pulverization rollers mounted on the lower part of the housing；
The feed hopper is connected to the shell, and the shell is mounted on support frame as described above；
The first driving means and second driving device are mounted on the outer wall of the shell；First driving
Device is connect with two gears respectively；Two pulverization rollers are connect with second driving device so that described in two
The comminuting space for crushing the waste concrete after gearing is formed between pulverization roller.
Further, the outer surface of the first driving means and second driving device is equipped with muffler.
Further, the recycled concrete producing device further includes screening machine；
The screening machine is mounted on support frame as described above, and is connected respectively with the material conveying pipe and the agitator
It is logical.
Further, the recycled concrete producing device further includes supporting mechanism, and the supporting mechanism includes pedestal, ten thousand
To wheel and telescopic supporting rod；
One end of the telescopic supporting rod is connect with the agitator, and the other end is connect with the pedestal, on the pedestal
The universal wheel is installed.
Recycled concrete producing device according to the present utility model passes through for the recycled concrete producing device
The useless coagulation body of processing enters to material receiver as aggregate and cement, miberal powder etc. from feeder, and water inlet device passes through liquid delivery tube
Road intakes into material receiver, and the mixtures such as above-mentioned water, aggregate, cement, miberal powder are conveyed blender by material conveying pipe,
When stirring by shaft with stirring sheet by stirrings such as aggregate, cement and miberal powders, as shaft rotates, shaft drive be mounted on
Scraping rod rotation on fixed disk, wedge-shaped part action with shovel when scraping rod rotates, by cement, shovel is fallen inside agitator,
So that the cement being sticked on agitator inner wall is fallen from agitator inner wall shovel so that the part of cement is sufficiently stirred with aggregate, due to
Cement will not be adhered on the inner wall of agitator, therefore the proportioning of cement and aggregate is strictly pressed in finally obtained regeneration concrete
Proportioning when according to design so that aggregate is accurately mixed with cement.
Description of the drawings
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific implementation mode or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, other drawings may also be obtained based on these drawings.
Fig. 1 is the structural schematic diagram for the recycled concrete producing device that the utility model embodiment provides；
Fig. 2 is the structural schematic diagram of blender in the recycled concrete producing device that the utility model embodiment provides；
Fig. 3 is the structural schematic diagram of stirring sheet in the recycled concrete producing device that the utility model embodiment provides；
Fig. 4 is the structural representation of the second sub- feeder in the recycled concrete producing device that the utility model embodiment provides
Figure.
Icon：10- supporting racks；20- feeders；The first sub- feeders of 201-；The second sub- feeders of 202-；2021- is fed
Bucket；2022- shells；2023- gears；2024- pulverization rollers；30- water inlet devices；40- material receivers；50- blenders；501- agitators；
502- shafts；503- stirring sheets；5031- stirring sheet ontologies；5032- connecting plates；The first interval troughs of 5033-；5034- second is spaced
Slot；504- scrapes rack；5041- fixes disk；5042- scraping rods；5043- wedge-shaped parts；60- material conveying pipes；70- liquid conveys
Pipeline；80- screening machines；801- fine grained screening machines；802- coarse granule screening machines；90- supporting mechanisms；901- pedestals；902- ten thousand
To wheel；903- telescopic supporting rods.
Specific implementation mode
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
The every other embodiment that field those of ordinary skill is obtained without making creative work, belongs to this practicality
Novel protected range.
It is in the description of the present invention, it should be noted that term "center", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
The utility model and simplifying describes for ease of description, do not indicate or imply the indicated device or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second ", " third " are used for description purposes only, and are not understood to indicate or imply relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, can also be electrical connection；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, it can understand above-mentioned art with concrete condition
The concrete meaning of language in the present invention.
Embodiment
One side according to the present utility model provides recycled concrete producing device as shown in Figure 1 and Figure 2, including
Supporting rack 10, feeder 20, water inlet device 30, the material receiver 40 for receiving material in feeder 20, blender 50, material conveying
Pipeline 60 and liquid conducting pipes 70, wherein blender 50 includes agitator 501, turn being rotatably connected in agitator 501
Axis 502 and several stirring sheets 503 in shaft 502；
Feeder 20, water inlet device 30 and material receiver 40 are mounted on supporting rack 10；Liquid conducting pipes 70 respectively with water inlet
Device 30 and material receiver 40 are connected to, and material conveying pipe 60 is connected to material receiver 40 and agitator 501 respectively；
It is equipped in shaft 502 and scrapes rack 504, wherein it includes multiple fixed disks 5041 and multiple scrapers to scrape rack 504
Bar 5042；
There is gap between 503 end face of stirring sheet and the inner wall of agitator 501；Along the length direction of shaft 502, Duo Gegu
Price fixing 5041 is mounted in shaft 502, and the axial line of fixed disk 5041 is overlapped with the axial line of shaft 502；Along fixed disk
5041 circumferential direction, multiple scraping rods 5042 are mounted on fixed disk 5041, and scraping rod 5042 and the inner wall of agitator 501 paste
It leans on, close to the inner wall of agitator 501, one end of scraping rod 5042 has can be in agitator 501 when shaft 502 rotates
Wall carries out the wedge-shaped part 5043 of shovel action.
Recycled concrete producing device according to the present utility model passes through for the recycled concrete producing device
The useless coagulation body of processing enters to material receiver 40 as aggregate and cement, miberal powder etc. from feeder 20, and water inlet device 30 passes through liquid
Conveyance conduit 70 is intake into material receiver 40, by material conveying pipe 60 by mixtures such as above-mentioned water, aggregate, cement, miberal powders
Convey blender 50, in stirring by shaft 502 with stirring sheet 503 by stirrings such as aggregate, cement and miberal powders, with turning
Axis 502 rotates, and shaft 502 drives the scraping rod 5042 being mounted on fixed disk 5041 to rotate, and wedge-shaped part 5043 is in scraping rod
Action with shovel when 5042 rotation falls cement from 501 inside shovel of agitator so that the water being sticked on 501 inner wall of agitator
Mud is fallen from 501 inner wall of agitator shovel so that the part of cement is sufficiently stirred with aggregate, since cement will not be adhered to agitator
On 501 inner wall, thus in finally obtained regeneration concrete cement and aggregate proportioning in strict accordance with design when proportioning, make
Aggregate is obtained accurately to mix with cement；
Wherein, paddle is rectangle, and the both sides of paddle all have several double wedges, and double wedge can will stick into block-like aggregate
Impact is opened so that aggregate is more abundant with cement mixing；
For feeder 20 and receiver, feeder 20 can be connected to receiver, can also be relatively independent individual.
According to a kind of embodiment of the utility model recycled concrete producing device, as shown in figure 3, stirring sheet 503 is wrapped
Include two stirring sheet ontologies 5031 and connecting plate 5032；
Two stirring sheet ontologies 5031 be oppositely arranged on the both sides of connecting plate 5032 so that two stirring sheet ontologies 5031 it
Between formed stirring gap.
Recycled concrete producing device according to the present utility model is formed between two stirring sheet ontologies 5031 being oppositely arranged
Gap is stirred, aggregate and cement that when stirring is raised etc. are fallen into from stirring gap, are convenient for circulation stirring；
Wherein, connecting plate 5032 is located between two stirring ontologies, and close to the edge of stirring ontology.
According to a kind of embodiment of the utility model recycled concrete producing device, as shown in figure 3, a stirring sheet sheet
Body 5031 is equipped with multiple first interval troughs 5033, another stirring sheet ontology 5031 is equipped with multiple second interval troughs 5034；
The setting of multiple intervals of first interval trough 5033, the setting of multiple intervals of second interval trough 5034, the first interval trough 5033
It is symmetrical arranged with the second interval trough 5034.
Recycled concrete producing device according to the present utility model, the setting of the first spacing convave trough and the second spacing convave trough
Convenient for reducing the stirring resistance between stirring sheet ontology 5031 and aggregate and cement etc., the energy consumption of blender 50 is reduced；
Wherein, the first interval trough 5033 and the second interval trough 5034 are strip structure；First interval trough 5033
End penetrates the periphery wall of a stirring sheet ontology 5031, and the end of the second interval trough 5034 penetrates another stirring sheet ontology
5031 periphery wall；
Multiple first spacing convave troughs can be divided into multigroup, and each group includes the first spacing convave trough for being arranged in order and being spaced, more
Group is along the circumferentially-spaced arrangement of a stirring sheet ontology 5031, and similarly, multiple second spacing convave troughs can be divided into multigroup, each group of packet
Include the second spacing convave trough for being arranged in order and being spaced, multigroup circumferentially-spaced arrangement along another stirring sheet ontology 5031.
According to a kind of embodiment of the utility model recycled concrete producing device, as shown in Figure 1, feeder 20 includes
First sub- feeder 201 and the second sub- feeder 202；
First sub- feeder 201 is connected to material receiver 40,202 face material receiver 40 of the second sub- feeder.
According to the utility model recycled concrete producing device, the first sub- feeder 201 is used for material receiver 40 into aggregate,
Second sub- glassware is used for material receiver 40 into cement, miberal powder etc., wherein the second sub- feeder 202 has mutually independent cement
Mouth, flyash addition mouth, miberal powder is added, mouth, sand addition mouth and rubble addition mouth is added, feeder 20 is divided for the first son
Feeder 201 and the second sub- feeder 202 can be convenient for charging, improve the utilization rate of resource.
According to a kind of embodiment of the utility model recycled concrete producing device, as shown in figure 4, the second sub- feeder
202 include feed hopper 2021 and grinding device；
Feed hopper 2021 is connected to grinding device.
According to the utility model recycled concrete producing device, feed hopper 2021 is convenient for useless coagulation body to enter grinding device
In, the pulverization to waste concrete is realized by grinding device, the utilization rate of resource can be improved, while also ing save money
Source.
According to a kind of embodiment of the utility model recycled concrete producing device, grinding device include shell 2022,
First driving means, the second driving device, two be mounted on 2022 top of shell gears 2023 and be mounted on shell 2022
Two pulverization rollers 2024 of lower part；
Feed hopper 2021 is connected to shell 2022, and shell 2022 is mounted on supporting rack 10；
First driving means and the second driving device are mounted on the outer wall of shell 2022；First driving means are respectively with two
A gear 2023 connects；Two pulverization rollers 2024 connect so as to be formed between two pulverization rollers 2024 with the second driving device and use
In the comminuting space for crushing the waste concrete after the effect of gear 2023.
Recycled concrete producing device according to the present utility model, first driving means are the first electric rotating machine, and second drives
Dynamic device is the second electric rotating machine, and power resources are provided to crush by the first electric rotating machine and the second electric rotating machine, the
One electric rotating machine is flexibly connected with gear 2023, and the second electric rotating machine and pulverization roller 2024 are rotatablely connected, by gear 2023 with
Pulverization roller 2024 realizes the effect fully crushed.
Wherein, the outer surface of first driving means and the second driving device is equipped with muffler, passes through muffler reality
The noise reduction to first driving means and the second driving device is showed.
According to a kind of embodiment of the utility model recycled concrete producing device, as shown in Figure 1, regeneration concrete is given birth to
It further includes screening machine 80 to produce device；
Screening machine 80 is mounted on supporting rack 10, and is connected to respectively with material conveying pipe 60 and agitator 501.
Recycled concrete producing device according to the present utility model is propping up for the recycled concrete producing device
Support 10 be equipped with screening machine 80, material conveying pipe 60 by the mixtures such as aggregate, cement, water be delivered to agitator 501 into
Before row stirring, the mixtures such as aggregate, cement, water can be first delivered in screening machine 80 by material conveying pipe 60, to mixture
Particle carries out further divide to improve the quality of regeneration concrete；
Wherein, screening machine 80 may include fine grained screening machine 801 and coarse granule screening machine 802, fine grain sieving machine
801 and coarse granule screening machine 802 be arranged independently of each other, be installed in supporting rack 10, and respectively with material conveying pipe 60
And agitator 501 is connected to, and it can be as needed, the compound particles that control material conveyance conduit 60 conveys enter fine grained screening
The case where machine 801 or coarse granule screening machine 802, i.e. if desired relatively fine particle, then fine grained screening machine 801 is entered to, if desired
Compared with coarse granule, then coarse granule screening machine 802 is entered to.
According to a kind of embodiment of the utility model recycled concrete producing device, as shown in Figure 1, regeneration concrete is given birth to
Production device further includes supporting mechanism 90, and supporting mechanism 90 includes pedestal 901, universal wheel 902 and telescopic supporting rod 903；
One end of telescopic supporting rod 903 is connect with agitator 501, and the other end is connect with pedestal 901, is installed on pedestal 901
There is universal wheel 902.
Recycled concrete producing device according to the present utility model, pedestal 901 realize the support to agitator 501, bottom
It is connected with telescopic supporting rod 903 between seat 901 and agitator 501, is realized to agitator 501 by telescopic supporting rod 903
Support and universal wheel 902 is installed convenient for adjusting the height of agitator 501, on pedestal 901, using universal wheel 902 convenient for pair
The rotation of agitator 501 to be sufficiently stirred concrete, and uses universal wheel 902 to be convenient for the movement to agitator 501, from
And convenient for the side of the regeneration concrete produced fortune.
Finally it should be noted that：The above various embodiments is only to illustrate the technical solution of the utility model, rather than limits it
System；Although utility model is described in detail with reference to foregoing embodiments, those skilled in the art should manage
Solution：It still can be with technical scheme described in the above embodiments is modified, either to which part or whole skills
Art feature carries out equivalent replacement；And these modifications or replacements, it does not separate the essence of the corresponding technical solution the utility model
The range of each embodiment technical solution.
Claims (10)
1. recycled concrete producing device, which is characterized in that including supporting rack, feeder, water inlet device, for receiving the charging
The material receiver of material, blender, material conveying pipe and liquid conducting pipes in device, wherein the blender includes stirring
Bucket, the shaft being rotatably connected in the agitator and several stirring sheets in the shaft；
The feeder, the water inlet device and the material receiver are mounted on support frame as described above；The liquid conducting pipes difference
Be connected to the water inlet device and the material receiver, the material conveying pipe respectively with the material receiver and the agitator
Connection；
It is equipped in the shaft and scrapes rack, wherein the rack of scraping includes multiple fixed disks and multiple scraping rods；
There is gap between the stirring sheet end face and the inner wall of the agitator；Along the length direction of the shaft, Duo Gesuo
Fixed disk is stated in the shaft, and the axial line of the fixed disk is overlapped with the axial line of the shaft；Along described solid
The circumferential direction of price fixing, multiple scraping rods are mounted on the fixed disk, and the inner wall of the scraping rod and the agitator pastes
It leans on, close to the inner wall of the agitator, one end of the scraping rod has can be to the agitator when the shaft rotates
Inner wall carry out the wedge-shaped part of shovel action.
2. recycled concrete producing device according to claim 1, which is characterized in that the stirring sheet includes two stirrings
Piece ontology and connecting plate；
Two stirring sheet ontologies are oppositely arranged on the both sides of the connecting plate so that shape between two stirring sheet ontologies
At stirring gap.
3. recycled concrete producing device according to claim 2, which is characterized in that set on a stirring sheet ontology
There are multiple first interval troughs, another described stirring sheet ontology is equipped with multiple second interval troughs；
Multiple first interval trough interval settings, multiple second interval trough interval settings, first interval trough and institute
The second interval trough is stated to be symmetrical arranged.
4. recycled concrete producing device according to claim 3, which is characterized in that first interval trough and described
Second interval trough is strip structure；
The end of first interval trough penetrates the periphery wall of a stirring sheet ontology, and the end of second interval trough is worn
The periphery wall of another saturating stirring sheet ontology.
5. recycled concrete producing device according to claim 1, which is characterized in that the feeder include first son into
Glassware and the second sub- feeder；
The second sub- feeder is connected to the material receiver, material receiver described in the first sub- feeder face.
6. recycled concrete producing device according to claim 5, which is characterized in that the second sub- feeder include into
Hopper and grinding device；
The feed hopper is connected to the grinding device.
7. recycled concrete producing device according to claim 6, which is characterized in that the grinding device include shell,
First driving means, the second driving device, two be mounted on the upper part of the housing gears and be mounted on the lower part of the housing
Two pulverization rollers；
The feed hopper is connected to the shell, and the shell is mounted on support frame as described above；
The first driving means and second driving device are mounted on the outer wall of the shell；The first driving means
It is connect respectively with two gears；Two pulverization rollers are connect with second driving device so that two crushing
The comminuting space for crushing the waste concrete after gearing is formed between roller.
8. recycled concrete producing device according to claim 7, which is characterized in that the first driving means and institute
The outer surface for stating the second driving device is equipped with muffler.
9. recycled concrete producing device according to claim 1, which is characterized in that the recycled concrete producing device
It further include screening machine；
The screening machine is mounted on support frame as described above, and is connected to respectively with the material conveying pipe and the agitator.
10. recycled concrete producing device according to claim 1, which is characterized in that the regeneration concrete production dress
It further includes supporting mechanism to set, and the supporting mechanism includes pedestal, universal wheel and telescopic supporting rod；
One end of the telescopic supporting rod is connect with the agitator, and the other end is connect with the pedestal, is installed on the pedestal
There is the universal wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820471136.4U CN208035000U (en) | 2018-04-02 | 2018-04-02 | Recycled concrete producing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820471136.4U CN208035000U (en) | 2018-04-02 | 2018-04-02 | Recycled concrete producing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208035000U true CN208035000U (en) | 2018-11-02 |
Family
ID=63947147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820471136.4U Active CN208035000U (en) | 2018-04-02 | 2018-04-02 | Recycled concrete producing device |
Country Status (1)
| Country | Link |
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| CN (1) | CN208035000U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108247845A (en) * | 2018-04-02 | 2018-07-06 | 长江南京航道工程局 | Recycled concrete producing device |
| CN113478648A (en) * | 2021-06-04 | 2021-10-08 | 金华职业技术学院 | Can avoid remaining proportioning device for recycled concrete production |
-
2018
- 2018-04-02 CN CN201820471136.4U patent/CN208035000U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108247845A (en) * | 2018-04-02 | 2018-07-06 | 长江南京航道工程局 | Recycled concrete producing device |
| CN113478648A (en) * | 2021-06-04 | 2021-10-08 | 金华职业技术学院 | Can avoid remaining proportioning device for recycled concrete production |
| CN113478648B (en) * | 2021-06-04 | 2022-11-04 | 金华职业技术学院 | Can avoid remaining proportioning device for recycled concrete production |
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