CN116003041A - Method and equipment for preparing concrete by granite powder - Google Patents
Method and equipment for preparing concrete by granite powder Download PDFInfo
- Publication number
- CN116003041A CN116003041A CN202211597566.8A CN202211597566A CN116003041A CN 116003041 A CN116003041 A CN 116003041A CN 202211597566 A CN202211597566 A CN 202211597566A CN 116003041 A CN116003041 A CN 116003041A
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- granite powder
- granite
- fixed
- preparing concrete
- powder
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- 239000010438 granite Substances 0.000 title claims abstract description 51
- 239000000843 powder Substances 0.000 title claims abstract description 49
- 239000004567 concrete Substances 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000004575 stone Substances 0.000 claims abstract description 17
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000000203 mixture Substances 0.000 claims abstract description 12
- 239000004576 sand Substances 0.000 claims abstract description 11
- 239000002699 waste material Substances 0.000 claims abstract description 11
- 239000000654 additive Substances 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 230000000996 additive effect Effects 0.000 claims abstract description 7
- 239000004568 cement Substances 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 6
- 238000007873 sieving Methods 0.000 claims abstract description 6
- 238000002156 mixing Methods 0.000 claims abstract description 5
- 238000002360 preparation method Methods 0.000 claims abstract description 5
- 239000006004 Quartz sand Substances 0.000 claims abstract description 4
- 238000003756 stirring Methods 0.000 claims abstract description 4
- 238000012216 screening Methods 0.000 claims description 24
- 239000003795 chemical substances by application Substances 0.000 claims description 21
- 230000005540 biological transmission Effects 0.000 claims description 14
- 230000006835 compression Effects 0.000 claims description 13
- 238000007906 compression Methods 0.000 claims description 13
- 238000009434 installation Methods 0.000 claims description 7
- 239000003638 chemical reducing agent Substances 0.000 claims description 6
- 230000006978 adaptation Effects 0.000 claims description 5
- 239000003086 colorant Substances 0.000 claims description 3
- 239000003112 inhibitor Substances 0.000 claims description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 3
- 230000013011 mating Effects 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 3
- -1 retarder Substances 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 2
- 238000004078 waterproofing Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000013461 design Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 238000011068 loading method Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000001133 acceleration Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
The invention discloses a method and equipment for preparing concrete by granite powder, wherein the method comprises the following steps: s1, crushing and sieving granite powder to enable the granite powder to meet the technical requirements of sand for concrete; s2, mixing granite powder meeting the requirements with cement, broken stone, quartz sand, an additive and a proper amount of water to obtain a mixture; and S3, forcibly stirring the mixture for 30-180S to make the mixture fully and uniformly, thus obtaining a finished product material and finishing the preparation. According to the method for preparing concrete by using granite stone powder, the granite stone powder is adopted, so that the problems of huge production amount and stocking amount of waste granite stone powder are solved, the addition amount of natural sand fine aggregate is effectively reduced, and resources are saved.
Description
Technical Field
The invention relates to the technical field of concrete preparation, in particular to a method for preparing concrete by using granite powder; the invention also relates to a device for preparing concrete by using granite powder.
Background
Concrete refers to a generic term for engineering composite materials in which aggregate is glued into a whole by a cementitious material. The term concrete generally refers to cement as a cementing material, and sand and stone as aggregate; the cement concrete, also called ordinary concrete, obtained by mixing the cement concrete with water (which can contain additives and admixtures) according to a certain proportion is widely applied to civil engineering.
Along with the acceleration of economic development and urbanization process, the discharge amount of granite waste stone powder is rapidly increased, and serious environmental, resource and safety problems are caused. Aiming at the problem of huge production and stocking of granite waste stone powder, the current situation of shortage of concrete natural sand aggregates is combined;
secondly, when the concrete is prepared, the screening quality is directly related to the whole quality of the concrete, while the existing equipment adopts a roller screen, the roller screen can rapidly screen fine aggregate, but the structure is complex, and a great amount of time is wasted in feeding and discharging.
Disclosure of Invention
The invention aims to provide a method and equipment for preparing concrete by using granite powder, which effectively reduce the addition amount of natural sand fine aggregate by adding the granite powder so as to solve the problems in the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions:
a method for preparing concrete by granite powder, comprising the following steps:
s1, crushing and sieving granite powder to enable the granite powder to meet the technical requirements of sand for concrete;
s2, mixing granite powder meeting the requirements with cement, broken stone, quartz sand, an additive and a proper amount of water to obtain a mixture;
and S3, forcibly stirring the mixture for 30-180S to make the mixture fully and uniformly, thus obtaining a finished product material and finishing the preparation.
Preferably, the granite powder in the step S1 is prepared from waste granite stone through screening, crushing, grinding and secondary screening.
Preferably, the additive in step S2 includes:
one or more of water reducing agent, early strength agent, retarder, air entraining agent, waterproofing agent, rust inhibitor, air entraining agent, expansion agent, antifreezing agent, colorant, accelerator, pumping agent and viscosity reducer.
An apparatus for preparing concrete from granite powder, the apparatus comprising:
a special screening device for screening the fine aggregate;
the special screening device comprises:
the upper end of the base is provided with a plurality of groups of support columns respectively;
the connecting components are respectively fixed on the supporting columns;
and the screen plate is arranged on the connecting component.
Preferably, the apparatus further comprises:
baffle plates fixed on the base and positioned at one side of the support columns;
a driving member fixed to the base;
one side of the sieve plate is provided with a transmission part, the baffle is provided with a through hole, and one end of the transmission part penetrates through the through hole and is in transmission connection with the driving part.
Preferably, the connection assembly includes:
the blind hole is formed in the side wall of the support column;
the sliding blocks are arranged in the blind holes, two groups of arc-shaped blocks are symmetrically arranged on the sliding blocks, and the two groups of arc-shaped blocks are respectively and slidably attached to the inner top and the inner bottom of the blind holes;
the compression spring is fixedly connected with the inner side wall of the blind hole, and the other end of the compression spring is connected with the side wall of the sliding block;
the connecting rod is fixed in on the sliding block lateral wall, the one end of connecting rod is located the outside of blind hole, just the one end of connecting rod is fixed with the installation piece, the location spliced eye has been seted up on the installation piece, the sieve be provided with under with location spliced eye looks adaptation is provided with the spliced pole, just the spliced pole grafting is fixed in the inside of location spliced eye.
Preferably, the driving member includes:
the output shaft end of the driving motor is fixed with a rotating column;
and the first matching block is fixed on one side of the rotating column.
Preferably, the transmission member includes:
the telescopic rod, the one end of telescopic rod is fixed in on the lateral wall of sieve, the other end fixedly connected with second cooperation piece of telescopic rod, the second cooperation piece with first cooperation piece looks adaptation sets up.
Preferably, the telescopic rod includes:
the external thread sleeve is fixed on the side wall of the sieve plate;
and the internal threaded rod is arranged in the external threaded sleeve in a threaded manner, and the second matching block is fixed at one end of the internal threaded rod.
In summary, the beneficial effects of the invention are as follows due to the adoption of the technology:
according to the method for preparing concrete by using granite stone powder, the granite stone powder is adopted, so that the problems of huge production and storage of waste granite stone powder are solved, the addition of natural sand fine aggregate is effectively reduced, and resources are saved;
in the equipment for preparing concrete by using granite powder, the design that the positioning inserting holes are formed in the mounting blocks is convenient for replacing screens with different apertures in use, and meanwhile, screening by adopting the screen plate is simpler and more convenient in loading and unloading than the traditional screening by adopting the roller screen, and the loading and unloading and screening sundries removal are not needed;
furthermore, the length of the telescopic rod can be adjusted according to actual use requirements through the design of the telescopic rod, so that the vibration amplitude of the sieve plate is controlled;
finally, the invention further ensures the vibration of the sieve plate through the design of the blind holes, the sliding blocks and the compression springs, thereby ensuring the sieving.
Drawings
FIG. 1 is a flow chart of a method of preparing concrete using granite powder in accordance with the present invention;
FIG. 2 is a schematic structural view of an apparatus for preparing concrete using granite powder according to the present invention;
FIG. 3 is a schematic view of a support column according to the present invention;
FIG. 4 is a schematic view of a connection assembly according to the present invention;
fig. 5 is a schematic structural view of the telescopic rod of the present invention.
In the figure: 1. a base; 2. a support column; 3. a connection assembly; 4. a sieve plate; 5. a baffle; 7. a driving member; 8. a transmission member; 9. a through hole; 10. a blind hole; 11. a sliding block; 12. an arc-shaped block; 13. a compression spring; 14. a connecting rod; 15. a mounting block; 16. positioning the plug hole; 17. inserting a column; 18. a drive motor; 19. rotating the column; 20. a first mating block; 21. a telescopic rod; 22. a second mating block; 23. an external thread sleeve; 24. an internal threaded rod.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.
Along with the acceleration of economic development and urbanization process, the discharge amount of the granite waste stone powder is rapidly increased, so that serious environmental, resource and safety problems are caused, and the method for preparing concrete by using the granite stone powder is provided as shown in figure 1 according to the current situation of shortage of concrete natural gravel aggregate aiming at the problems of huge generation amount and stockpiling amount of the granite waste stone powder, and comprises the following steps:
s1, crushing and sieving granite powder to meet the technical requirements of sand for concrete, wherein the technical requirements are specified in construction sand (GB/T14684-2022);
s2, mixing granite powder meeting the requirements with cement, broken stone, quartz sand, an additive and a proper amount of water to obtain a mixture;
the additive of step S2 comprises:
one or more of water reducing agent, early strength agent, retarder, air entraining agent, waterproof agent, rust inhibitor, air entraining agent, expansion agent, antifreezing agent, colorant, accelerator, pumping agent and viscosity reducer are mixed for use;
and S3, forcibly stirring the mixture for 30-180S to make the mixture fully and uniformly, thus obtaining a finished product material and finishing the preparation.
According to the method for preparing concrete by using granite powder, the granite powder is adopted, so that the problems of huge production amount and stocking amount of waste granite powder are solved, the addition amount of natural sand fine aggregate is effectively reduced, and resources are saved.
The embodiment of the invention also provides equipment for preparing concrete by using granite powder, which comprises:
a special screening device for screening the fine aggregate;
the special screening device comprises:
the base 1, the upper end of the base 1 is provided with a plurality of groups of support columns 2 respectively;
the connecting components 3 are respectively fixed on the four groups of support columns 2;
a screen plate 4 mounted on the connection assembly 3;
when in use, the sieve plate 4 is firstly arranged on the connecting components 3 on the four groups of support columns 2, and then a receiving bucket is arranged at the lower end of the sieve plate 4 for collecting the sieved concrete;
the greatest difference between the device and the prior art is that: in the prior art, a roller screen is mostly adopted to screen concrete, which leads to waste time for loading and unloading and cleaning the screened waste, and loading and unloading can be rapidly carried out through a screen plate 4, so that an operation mode of loading, screening and unloading is realized;
the connection assembly 3 includes:
the sliding block 11 is arranged in the blind hole 10, two groups of arc blocks 12 are symmetrically arranged on the sliding block 11, and the two groups of arc blocks 12 are respectively and slidably attached to the inner top and the inner bottom of the blind hole 10;
with the above design, the arc-shaped block 12 slides in the blind hole 10, and the highest (low) point of the arc-shaped block 12 contacts the inside of the blind hole 10, so that the contact area is reduced, the friction force is further reduced, and the damage to the sliding block 11 caused by long-term friction between the blind hole 10 and the sliding block 11 is avoided.
The compression spring 13 is fixedly connected with the inner side wall of the blind hole 10, and the other end of the compression spring 13 is connected with the side wall of the sliding block 11;
the design further ensures the vibration of the sieve plate 4 through the design of the blind holes 10, the sliding blocks 11 and the compression springs 13, thereby ensuring sieving, and on the other hand, when the compression springs 13 are matched with the arc-shaped blocks 12 for use, as the contact between the arc-shaped blocks 12 and the inner walls of the blind holes 10 is point contact, the working pressure of the compression springs 13 in use is reduced, and the service life of the compression springs is further prolonged.
The connecting rod 14 fixed on the side wall of the sliding block 11, one end of the connecting rod 14 is positioned outside the blind hole 10, one end of the connecting rod 14 is fixed with the installation block 15, the installation block 15 is provided with the positioning plug hole 16, the lower part of the sieve plate 4 is provided with the plug post 17 matched with the positioning plug hole 16, and the plug post 17 is inserted and fixed in the positioning plug hole 16.
Through the design of seting up location spliced eye 16 on installation piece 15, be convenient for change the sieve 4 of different apertures when using.
The apparatus further comprises:
a baffle plate 5 fixed on the base 1 and positioned at one side of the plurality of groups of support columns 2;
a driving member 7 fixed to the base 1, the driving member 7 including:
a driving motor 18, wherein a rotating column 19 is fixed at the output shaft end of the driving motor 18;
a first fitting block 20 fixed to one side of the rotation column 19;
one side of the sieve plate 4 is provided with a transmission member 8, the baffle plate 5 is provided with a through hole 9, and one end of the transmission member 8 passes through the through hole 9 to be in transmission connection with the driving member 7;
when in use, the driving motor 18 drives the rotating column 19 to rotate, the rotating column 19 drives the first matching block 20 to do circular motion along the center of the rotating column 19, when the first matching block 20 contacts the transmission piece 8, the screen plate 4 is triggered to displace, and under the matching action of the sliding block 11 and the compression spring 13, the screen plate 4 is transversely swung, so that the effect of the vibrator is achieved.
In addition, the existing vibrator can only drive the screen plate 4 body to vibrate, although the effects of clamping block screening and blanking can be achieved, the small-amplitude longitudinal vibration screening effect of the body is known at the time, and the screening effect is faster and better because the small-amplitude longitudinal vibration screening effect of the body is completely free from transverse reciprocating movement;
the transmission member 8 includes:
the telescopic link 21, the one end of telescopic link 21 is fixed in on the lateral wall of sieve 4, and the other end fixedly connected with second cooperation piece 22 of telescopic link 21, second cooperation piece 22 and first cooperation piece 20 looks adaptation setting, telescopic link 21 includes:
the external thread sleeve 23, the external thread sleeve 23 is fixed on the sidewall of the screen plate 4;
the internal thread rod 24, the internal thread rod 24 is installed in the inside of the external thread sleeve 23 in a threaded manner, and the second matching block 22 is fixed at one end of the internal thread rod 24.
According to the design, the length of the telescopic rod can be adjusted according to actual use requirements through the design of the telescopic rod 21, so that the vibration amplitude of the sieve plate is controlled;
meanwhile, the adjustment of the vibration amplitude mainly aims at concrete with different viscosity, when fine aggregate with increased viscosity is screened, the effect of rapid screening cannot be achieved by large-amplitude swing, so that small-amplitude rapid reciprocating swing is adopted;
moreover, when the fine aggregate with increased viscosity is screened, the large-amplitude slow-frequency swing can also enable the fine aggregate to be screened rapidly, and when the large-amplitude slow-frequency reciprocating motion is performed, because the reciprocating frequency is relatively slow, residual waves with small amplitude swing exist after the large-amplitude complex motion, and the screening effect is further ensured.
The present invention is not limited to the above preferred embodiments, and any person skilled in the art, based on the technical solution of the present invention and the equivalents and modifications of the inventive concept, should be covered in the scope of the present invention.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Claims (9)
1. A method for preparing concrete by granite powder, which is characterized by comprising the following steps:
s1, crushing and sieving granite powder to enable the granite powder to meet the technical requirements of sand for concrete;
s2, mixing granite powder meeting the requirements with cement, broken stone, quartz sand, an additive and a proper amount of water to obtain a mixture;
and S3, forcibly stirring the mixture for 30-180S to make the mixture fully and uniformly, thus obtaining a finished product material and finishing the preparation.
2. The method for preparing concrete by using granite powder according to claim 1, wherein: the granite powder in the step S1 is prepared from waste granite through screening, crushing, grinding and secondary screening.
3. The method for preparing concrete by using granite powder according to claim 1, wherein: the additive in step S2 comprises:
one or more of water reducing agent, early strength agent, retarder, air entraining agent, waterproofing agent, rust inhibitor, air entraining agent, expansion agent, antifreezing agent, colorant, accelerator, pumping agent and viscosity reducer.
4. An apparatus for preparing concrete using granite powder, characterized in that: the apparatus comprises:
a special screening device for screening the fine aggregate;
the special screening device comprises:
the device comprises a base (1), wherein a plurality of groups of support columns (2) are respectively arranged at the upper end of the base (1);
the connecting components (3) are respectively fixed on the supporting columns (2) of the groups;
and the screen plate (4) is arranged on the connecting assembly (3).
5. The apparatus for preparing concrete using granite powder as set forth in claim 4, further comprising:
the baffle plates (5) are fixed on the base (1) and positioned at one sides of the supporting columns (2);
a driving member (7) fixed to the base (1);
one side of the sieve plate (4) is provided with a transmission part (8), a through hole (9) is formed in the baffle plate (5), and one end of the transmission part (8) penetrates through the through hole (9) to be in transmission connection with the driving part (7).
6. The apparatus for preparing concrete from granite powder as set forth in claim 4, wherein: the connection assembly (3) comprises:
a blind hole (10) arranged on the side wall of the support column (2);
the sliding block (11) is arranged in the blind hole (10), two groups of arc blocks (12) are symmetrically arranged on the sliding block (11), and the two groups of arc blocks (12) are respectively and slidably attached to the inner top and the inner bottom of the blind hole (10);
the compression spring (13) is fixedly connected with the inner side wall of the blind hole (10), and the other end of the compression spring (13) is connected with the side wall of the sliding block (11);
the connecting rod (14) is fixed in on the lateral wall of sliding block (11), the one end of connecting rod (14) is located the outside of blind hole (10), just the one end of connecting rod (14) is fixed with installation piece (15), location spliced eye (16) have been seted up on installation piece (15), be provided with under sieve (4) with location spliced eye (16) looks adaptation is provided with spliced pole (17), just spliced pole (17) peg graft and are fixed in the inside of location spliced eye (16).
7. The apparatus for preparing concrete from granite powder of claim 5, wherein: the driving member (7) includes:
a driving motor (18), wherein a rotating column (19) is fixed at the output shaft end of the driving motor (18);
a first mating block (20) fixed to one side of the rotating column (19).
8. The apparatus for preparing concrete using granite powder as set forth in claim 7, wherein: the transmission member (8) comprises:
the telescopic rod (21), the one end of telescopic rod (21) is fixed in on the lateral wall of sieve (4), the other end fixedly connected with second cooperation piece (22) of telescopic rod (21), second cooperation piece (22) with first cooperation piece (20) looks adaptation sets up.
9. The apparatus for preparing concrete using granite powder as set forth in claim 8, wherein: the telescopic rod (21) comprises:
the external thread sleeve (23), the external thread sleeve (23) is fixed on the side wall of the sieve plate (4);
the internal thread rod (24), internal thread rod (24) screw thread install in the inside of external thread cover (23), second cooperation piece (22) are fixed in the one end of internal thread rod (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211597566.8A CN116003041A (en) | 2022-12-12 | 2022-12-12 | Method and equipment for preparing concrete by granite powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211597566.8A CN116003041A (en) | 2022-12-12 | 2022-12-12 | Method and equipment for preparing concrete by granite powder |
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| Publication Number | Publication Date |
|---|---|
| CN116003041A true CN116003041A (en) | 2023-04-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211597566.8A Pending CN116003041A (en) | 2022-12-12 | 2022-12-12 | Method and equipment for preparing concrete by granite powder |
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| CN (1) | CN116003041A (en) |
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| CN104844081A (en) * | 2015-04-10 | 2015-08-19 | 福建省建筑材料工业科学研究所 | Concrete using granite powder as major mineral admixture |
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| CN211160653U (en) * | 2020-03-26 | 2020-08-04 | 海南河道综合整治工程有限公司 | Sand-stone separating device for river channel dredging |
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| CN212348924U (en) * | 2020-05-15 | 2021-01-15 | 北京百旺环境科技股份有限公司 | Sand making equipment with screening function |
| CN214638136U (en) * | 2021-08-18 | 2021-11-09 | 新疆恒泰新型建材有限公司 | Concrete low noise type vibration multi-stage screening device |
| WO2022021960A1 (en) * | 2020-07-28 | 2022-02-03 | 贵州成智重工科技有限公司 | 6s processing process and production line of coarse and fine meso- and microaggregates for concrete |
-
2022
- 2022-12-12 CN CN202211597566.8A patent/CN116003041A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104844081A (en) * | 2015-04-10 | 2015-08-19 | 福建省建筑材料工业科学研究所 | Concrete using granite powder as major mineral admixture |
| CN107473670A (en) * | 2017-09-25 | 2017-12-15 | 广东工业大学 | A kind of modification method of mortar and the environmentally friendly mortar containing granite waste stone dust |
| CN208661717U (en) * | 2018-08-31 | 2019-03-29 | 开封大学 | A kind of concrete production fine sand recycling machine |
| CN211160653U (en) * | 2020-03-26 | 2020-08-04 | 海南河道综合整治工程有限公司 | Sand-stone separating device for river channel dredging |
| CN212348924U (en) * | 2020-05-15 | 2021-01-15 | 北京百旺环境科技股份有限公司 | Sand making equipment with screening function |
| CN111804411A (en) * | 2020-07-02 | 2020-10-23 | 杨玲利 | Concrete regeneration treatment device |
| WO2022021960A1 (en) * | 2020-07-28 | 2022-02-03 | 贵州成智重工科技有限公司 | 6s processing process and production line of coarse and fine meso- and microaggregates for concrete |
| CN111825396A (en) * | 2020-07-31 | 2020-10-27 | 亚泰集团长春建材有限公司 | Concrete based on limestone tailings as raw material and preparation method thereof |
| CN214638136U (en) * | 2021-08-18 | 2021-11-09 | 新疆恒泰新型建材有限公司 | Concrete low noise type vibration multi-stage screening device |
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