CN208869513U - A kind of device using hydrated calcium silicate gel solution modification recycled aggregate - Google Patents
A kind of device using hydrated calcium silicate gel solution modification recycled aggregate Download PDFInfo
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- CN208869513U CN208869513U CN201821262310.0U CN201821262310U CN208869513U CN 208869513 U CN208869513 U CN 208869513U CN 201821262310 U CN201821262310 U CN 201821262310U CN 208869513 U CN208869513 U CN 208869513U
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- air
- recycled aggregate
- calcium silicate
- gel solution
- silicate hydrate
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- 229910052918 calcium silicate Inorganic materials 0.000 title claims abstract description 44
- 239000000378 calcium silicate Substances 0.000 title claims abstract description 44
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 title claims abstract description 44
- 238000012986 modification Methods 0.000 title abstract description 3
- 230000004048 modification Effects 0.000 title abstract description 3
- 239000007788 liquid Substances 0.000 claims abstract description 42
- 239000002699 waste material Substances 0.000 claims abstract description 25
- 238000007605 air drying Methods 0.000 claims abstract description 19
- 238000012545 processing Methods 0.000 claims abstract description 7
- 238000011084 recovery Methods 0.000 claims description 4
- 239000002002 slurry Substances 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 5
- 230000008929 regeneration Effects 0.000 description 18
- 238000011069 regeneration method Methods 0.000 description 18
- 239000002086 nanomaterial Substances 0.000 description 11
- 230000000694 effects Effects 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 238000010521 absorption reaction Methods 0.000 description 7
- 239000000843 powder Substances 0.000 description 7
- 239000013078 crystal Substances 0.000 description 4
- 230000007704 transition Effects 0.000 description 4
- 239000004568 cement Substances 0.000 description 3
- 238000007709 nanocrystallization Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000002105 nanoparticle Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000011800 void material Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
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
Landscapes
- Processing Of Solid Wastes (AREA)
Abstract
Recycled aggregate process field in the utility model concrete works, in particular to a kind of device using hydrated calcium silicate gel solution modification recycled aggregate, fine nanosizing processing is carried out for the surface to recycled aggregate, the device, which is divided into, wraps up in liquid zone and air drying area, the liquid bed for wrapping up in liquid zone holds hydrated calcium silicate gel solution, hollow out mesh belt is equipped in the air-drying box of air drying area, it air-dries upper box part and is equipped with circulating fan, it air-dries lower box part and is equipped with waste liquid pool, untreated recycled aggregate is delivered to liquid bed by belt feeder, so that hydrated calcium silicate gel solution uniform fold is on recycled aggregate surface.Air-drying box is entered by hollow out mesh belt connect with belt feeder end by wrapping up in slurry treated recycled aggregate and carries out air-dried processing, generated material waste material falls into the waste liquid pool being disposed below, and the finished product recycled aggregate after air-drying is recycled from the end of hollow out mesh belt.
Description
Technical Field
The utility model discloses regeneration aggregate among the concrete engineering handles the field, in particular to utilize device of calcium silicate hydrate gel solution modified regeneration aggregate.
Background
With the rapid development of the urbanization process, the situation of refuse city enclosing appears in large cities in various places of China at present. The traditional garbage landfill mode occupies land and causes large-scale pollution to the land, underground water and air. Therefore, it is necessary to utilize the municipal refuse as resources. According to statistics, at present, the construction waste of China accounts for about 40% of the urban waste, and the waste concrete waste accounts for about 50% of the construction waste, so that the preparation of the recycled aggregate by using the waste concrete for mixing the concrete is an important way for realizing the resource utilization of the urban waste.
At present, concrete prepared by utilizing recycled aggregate is mainly applied to non-bearing engineering occasions such as road cushions and the like with low requirements. The main reasons for this are that the recycled aggregate has a large water absorption, high powder content and large void ratio of aggregate compared with natural aggregate, and it is difficult to prepare concrete with high strength and good workability. The recycled aggregate has large water absorption capacity, large void ratio of the aggregate and high powder content, and has great relation with the surface characteristics of the recycled aggregate after mechanical processing. Generally, the method of adhering and mechanically crushing old mortar for surface hardening of recycled aggregate is a main cause of large water absorption, high powder content and large stacking gap of recycled aggregate. Therefore, it is necessary to perform a deep processing treatment on the surface of the recycled aggregate, which is also an optimal way to further improve the performance of recycled concrete.
At present, the surface of the recycled aggregate is reinforced by two methods, namely gas treatment and slurry treatment. The gas treatment is mainly by using CO2The gas carbonizes the surface of the recycled aggregate, and the slurry treatment is divided into organic slurry treatment and inorganic slurry treatment. Organic slurry treatment is effective in reducing the recycled aggregate water absorption, but may affect recycled concrete strength. The inorganic slurry treatment is equivalent to wrapping cement slurry on the surface of the recycled aggregate, and the effect is not great. Research shows that the fine nano treatment of the surface of the recycled aggregate is a feasible approach. After the surface of the recycled aggregate is subjected to nanocrystallization, the interface transition zone of the concrete can be effectively improved, the strength is improved, and meanwhile, the effect of improving the fluidity of the concrete is achieved.
In the prior art, the surface of the recycled aggregate is subjected to nano treatment, namely, a nano material is mixed in common cement slurry, and the slurry mixed with the nano material is wrapped on the surface of the recycled aggregate and dried for use. By adopting the method, the nano particles are very easy to be wrapped by larger particles such as cement, mineral powder, powder ash and the like, the nano activity of the nano particles can not be exerted, and the nano materials are not uniformly distributed on the surface of the recycled aggregate.
Therefore, a device for modifying recycled aggregate by using calcium silicate hydrate gel solution, which has simple treatment process and high efficiency, is needed.
SUMMERY OF THE UTILITY MODEL
The utility model provides an utilize calcium silicate hydrate gel solution to modify device of regeneration aggregate, this utilize calcium silicate hydrate gel solution to modify device of regeneration aggregate for calcium silicate hydrate gel solution evenly covers on regeneration aggregate surface, and the nano-material can effectively fill the micropore on aggregate surface, reduces its water absorption rate, and simultaneously, the nano-material also can full play its nanometer activity, improves the mechanical properties of regeneration concrete interface transition district, thereby improves the performance of regeneration concrete. In addition, the device is simple in surface nanocrystallization treatment process of the recycled aggregate, high in speed and capable of meeting the requirement of raw material supply of a mixing plant.
For solving the technical problem, the utility model discloses a following technical scheme:
an apparatus for modifying recycled aggregate with calcium silicate hydrate gel solution, comprising: the recycled aggregate pulp wrapping area and the air drying area are communicated with each other; wherein,
the pulp wrapping area comprises a liquid bed and a belt conveyor which are arranged in a matched mode;
the air-dry district includes circulating fan, air-dry case, fretwork guipure and waste liquid pond, circulating fan set up in the upper portion of air-dry case, the fretwork guipure set up in the air-dry case, the waste liquid pond is located the below of fretwork guipure, the head end of fretwork guipure with the terminal through connection of belt feeder, regenerated aggregate gets into liquid bed and handles the back and bring into the air-dry case through the fretwork guipure and carry out the air-dry processing. Compared with the prior art, the utility model discloses following beneficial effect has:
(1) the utility model discloses an utilize device of calcium silicate hydrate gel solution modified regeneration aggregate, it divide into and wraps up in liquid district and air-dry district, and the liquid bed in wrapping up in liquid district holds calcium silicate hydrate gel solution, is equipped with the fretwork guipure in the air-dry box in air-dry district, and air-dry box upper portion is equipped with circulating fan, and the air-dry box lower part is equipped with waste liquid pool, and untreated regeneration aggregate passes through the belt feeder and carries to the liquid bed for calcium silicate hydrate gel solution evenly covers on regeneration aggregate surface. The size of C-S-H gel contained in the calcium silicate hydrate gel solution is in a nano-scale range, so that the calcium silicate hydrate gel solution belongs to a nano material, the nano material can effectively fill micropores on the surface of the recycled aggregate, the water absorption rate of the recycled aggregate is reduced, meanwhile, the nano material can fully exert the nano activity of the recycled aggregate, the mechanical property of a recycled concrete interface transition region is improved, and the performance of the recycled concrete is improved. And the recycled aggregate subjected to pulp wrapping treatment enters an air drying box through a hollow mesh belt connected with the tail end of the belt conveyor for air drying treatment, the generated material waste falls into a waste liquid pool positioned below the material waste, and the finished recycled aggregate subjected to air drying is recovered from the tail end of the hollow mesh belt. After the recycled aggregate wrapped with the calcium silicate hydrate gel solution is air-dried, the calcium silicate seed crystals can be uniformly distributed on the surface of the aggregate, and the nano-reinforcing effect of the calcium silicate seed crystals can be effectively exerted.
(2) The utility model discloses an utilize device of calcium silicate hydrate gel solution modified regeneration aggregate, easy operation, convenience carry out surperficial nanometer to the regeneration aggregate and handle the flow simple, fast, can satisfy the engineering demand, have better spreading value.
Further, calcium silicate hydrate gel solution is contained in the liquid bed, and the C-S-H gel size of the calcium silicate hydrate gel solution is in a nanometer range. Untreated recycled aggregate is conveyed to a liquid bed through a belt conveyor for pulp wrapping treatment, the pulp has the aggregate cleaning function, and the pulp can effectively remove micro powder attached to the surface of the recycled aggregate in the process that the recycled aggregate moves along with the belt in the liquid bed.
Further, the circulating fan comprises an air inlet pipe and an air outlet pipe. The circulating fan positioned on the upper part of the air drying box can generate circulating airflow in the air drying box, so that the surface of the recycled aggregate subjected to pulp wrapping treatment is quickly dried.
Further, the recovery device is further included, and the recovery device is connected with the tail end of the hollowed-out mesh belt.
Further, the liquid bed is provided with 2 or 4 supports.
Drawings
Fig. 1 is a schematic structural diagram of an apparatus for modifying recycled aggregate by using a calcium silicate hydrate gel solution according to an embodiment of the present invention.
In the figure:
1-liquid bed, 11-support; 2-a belt conveyor; 3-circulating fan, 31-air inlet pipe, 32-air outlet pipe; 4-air drying box; 5-hollowed out mesh belt; 6-waste liquid pool.
Detailed Description
The following describes in detail an apparatus for modifying recycled aggregate by using calcium silicate hydrate gel solution according to the present invention with reference to the accompanying drawings and specific examples. The advantages and features of the present invention will become more fully apparent from the following description and appended claims. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention. For convenience of description, the directions of "up" and "down" described below are the same as the directions of "up" and "down" in the drawings, but this is not a limitation of the technical solution of the present invention.
Example one
Referring to fig. 1, the structural composition of the apparatus for modifying recycled aggregate using calcium silicate hydrate gel solution according to the present invention will be described in detail with reference to fig. 1.
As shown in fig. 1, an apparatus for modifying recycled aggregate using calcium silicate hydrate gel solution comprises: the recycled aggregate pulp wrapping area and the air drying area are communicated with each other; wherein, the pulp wrapping area comprises a liquid bed 1 and a belt conveyor 2 which are arranged in a matching way; the air-dry district includes circulating fan 3, air-dry box 4, fretwork guipure 5 and waste liquid pond 6, and circulating fan 3 sets up in the upper portion of air-dry box 4, and fretwork guipure 5 sets up in air-dry box 4, and waste liquid pond 6 is located the below of fretwork guipure 5, and the head end of fretwork guipure 5 and the terminal through connection of belt feeder 2, and the regeneration aggregate gets into liquid bed 1 through belt feeder 2 and handles the back and brings into the air-dry box through fretwork guipure 5 and carry out the air-dry processing.
Particularly, the utility model discloses an utilize device of calcium silicate hydrate gel solution modified regeneration aggregate, it divide into and wraps up in liquid district and air-dry district, and the liquid bed in wrapping up in liquid district holds calcium silicate hydrate gel solution, is equipped with the fretwork guipure in the air-dry box in air-dry district, and air-dry box upper portion is equipped with circulating fan, and the air-dry box lower part is equipped with waste liquid pond, and untreated regeneration aggregate passes through the belt feeder and carries to the liquid bed for calcium silicate hydrate gel solution evenly covers on regeneration aggregate surface. The size of C-S-H gel contained in the calcium silicate hydrate gel solution is in a nano-scale range, so that the calcium silicate hydrate gel solution belongs to a nano material, the nano material can effectively fill micropores on the surface of the recycled aggregate, the water absorption rate of the recycled aggregate is reduced, meanwhile, the nano material can fully exert the nano activity of the recycled aggregate, the mechanical property of a recycled concrete interface transition region is improved, and the performance of the recycled concrete is improved. And the recycled aggregate subjected to pulp wrapping treatment enters an air drying box through a hollow mesh belt connected with the tail end of the belt conveyor for air drying treatment, the generated material waste falls into a waste liquid pool positioned below the material waste, and the finished recycled aggregate subjected to air drying is recovered from the tail end of the hollow mesh belt. After the recycled aggregate wrapped with the calcium silicate hydrate gel solution is air-dried, the calcium silicate seed crystals can be uniformly distributed on the surface of the aggregate, and the nano-reinforcing effect of the calcium silicate seed crystals can be effectively exerted. Utilize the utility model discloses a device of calcium silicate hydrate gel solution modified regeneration aggregate carries out surperficial nanocrystallization to the regeneration aggregate and handles the flow simple, and is fast, can satisfy the engineering demand.
In the present embodiment, it is more preferable that the calcium silicate hydrate gel solution is contained in the liquid bed 1, and the C-S-H gel size of the calcium silicate hydrate gel solution is in the nanometer range. Untreated recycled aggregate is conveyed to the liquid bed 1 through the belt conveyor 2 for pulp wrapping treatment, the pulp has the aggregate cleaning function, and the pulp can effectively remove micro powder attached to the surface of the recycled aggregate in the process that the recycled aggregate moves along with the belt in the liquid bed.
In the present embodiment, it is more preferable that the circulation fan 3 includes an air inlet duct 31 and an air outlet duct 32. The circulating fan 3 positioned at the upper part of the air drying box 4 can generate circulating airflow in the air drying box 4, so that the surface of the recycled aggregate subjected to pulp wrapping treatment is quickly dried.
In this embodiment, it is more preferable that a recycling device is further included, and the recycling device is connected with the end of the hollowed-out mesh belt 5.
In this embodiment, it is more preferable that the liquid bed 1 is provided with the supports 11, and the number of the supports 11 is 2 or 4.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (5)
1. An apparatus for modifying recycled aggregate by using calcium silicate hydrate gel solution, which is characterized by comprising: the recycled aggregate pulp wrapping area and the air drying area are communicated with each other; wherein,
the pulp wrapping area comprises a liquid bed and a belt conveyor which are arranged in a matched mode;
the air-dry district includes circulating fan, air-dry case, fretwork guipure and waste liquid pond, circulating fan set up in the upper portion of air-dry case, the fretwork guipure set up in the air-dry case, the waste liquid pond is located the below of fretwork guipure, the head end of fretwork guipure with the terminal through connection of belt feeder, regenerated aggregate gets into liquid bed and handles the back and bring into the air-dry case through the fretwork guipure and carry out the air-dry processing.
2. The apparatus for modifying recycled aggregate using calcium silicate hydrate gel solution as claimed in claim 1, wherein the liquid bed contains calcium silicate hydrate gel solution, and the calcium silicate hydrate gel solution has a C-S-H gel size in nano-scale range.
3. The apparatus for modifying recycled aggregate using calcium silicate hydrate gel solution as claimed in claim 1, wherein the circulating fan comprises an air inlet pipe and an air outlet pipe.
4. The apparatus for modifying recycled aggregate by using calcium silicate hydrate gel solution as claimed in claim 1, further comprising a recovery device, wherein the recovery device is connected with the end of the hollowed-out mesh belt.
5. The apparatus for modifying recycled aggregate with calcium silicate hydrate gel solution as claimed in claim 1, wherein the liquid bed is provided with supports, the number of the supports is 2 or 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821262310.0U CN208869513U (en) | 2018-08-07 | 2018-08-07 | A kind of device using hydrated calcium silicate gel solution modification recycled aggregate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821262310.0U CN208869513U (en) | 2018-08-07 | 2018-08-07 | A kind of device using hydrated calcium silicate gel solution modification recycled aggregate |
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| Publication Number | Publication Date |
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| CN208869513U true CN208869513U (en) | 2019-05-17 |
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| CN201821262310.0U Active CN208869513U (en) | 2018-08-07 | 2018-08-07 | A kind of device using hydrated calcium silicate gel solution modification recycled aggregate |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111003961A (en) * | 2019-12-28 | 2020-04-14 | 长安大学 | Modification treatment device and method for recycled aggregate |
| CN112225479A (en) * | 2020-10-22 | 2021-01-15 | 青岛农业大学 | Recycled concrete processing is with active property improvement device that gathers materials |
| CN112457028A (en) * | 2020-11-23 | 2021-03-09 | 无锡远能耐火材料有限公司 | Aggregate sol coating agent releasing device of environment-friendly low-aluminum castable |
-
2018
- 2018-08-07 CN CN201821262310.0U patent/CN208869513U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111003961A (en) * | 2019-12-28 | 2020-04-14 | 长安大学 | Modification treatment device and method for recycled aggregate |
| CN112225479A (en) * | 2020-10-22 | 2021-01-15 | 青岛农业大学 | Recycled concrete processing is with active property improvement device that gathers materials |
| CN112457028A (en) * | 2020-11-23 | 2021-03-09 | 无锡远能耐火材料有限公司 | Aggregate sol coating agent releasing device of environment-friendly low-aluminum castable |
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