CN215910313U - A ageing dish for oven - Google Patents
A ageing dish for oven Download PDFInfo
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- CN215910313U CN215910313U CN202122385290.4U CN202122385290U CN215910313U CN 215910313 U CN215910313 U CN 215910313U CN 202122385290 U CN202122385290 U CN 202122385290U CN 215910313 U CN215910313 U CN 215910313U
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- scraper
- aging
- asphalt
- tray
- oven
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Abstract
The utility model provides an aging plate for an oven, which comprises an aging plate body, wherein a detachable shaft is arranged at the center of an inner cavity of the aging plate body; the detachable shaft is rotatably connected with a scraper, and a heating unit is arranged in an inner cavity of the scraper; the utility model can simply and quickly clean the asphalt adhered on the aging plate.
Description
Technical Field
The utility model belongs to the technical field of pavement materials, and particularly relates to an aging plate for an oven.
Background
Asphalt is an organic cementing material and is widely applied to the water resistance and corrosion resistance of road pavements, roofs and underground structures, so that the provision of the asphalt with excellent performance is important for the influence of the prepared asphalt mixture and the pavement performance thereof. Asphalt materials cause different degrees of aging of asphalt in the mixing, paving and rolling processes of asphalt mixtures and the long-term use process of asphalt pavements, thereby reducing the pavement performance of the asphalt pavements. The international methods for simulating short-term aging of asphalt are both the thin film heat test (TFOT) and the rotating thin film heat test (RTFOT). The asphalt film heating test is mainly suitable for measuring the quality change of the road petroleum asphalt and polymer modified asphalt films after being heated, and also measuring the indexes of the residues after the films are heated, such as penetration degree, ductility, softening point, viscosity and the like, so as to evaluate the aging resistance of the asphalt. The diameter of the aging plate is 360mm, the oven is adjusted horizontally in the test process, the speed of the turntable is controlled to be 5.5r/min +/-1 r/min, the inclination angle of the turntable and the horizontal plane is not more than 3 degrees, the heating temperature is 160 ℃, the asphalt sample is taken out of the oven after the test is finished, and then the subsequent related tests are carried out.
According to the regulation of JTG-E20-2011 test specification of road engineering asphalt and asphalt mixture, four shallow grooves are arranged on an asphalt film heating test for placing samples, the sample amount of each sample is 50g +/-0.5 g, and a film with uniform asphalt thickness is formed. Because the asphalt is a viscous substance and can be in a flowing state at the temperature of 160 ℃, most of the asphalt can be stuck in the aging plate, the quantity of the recovered asphalt is very small, the quality loss problem existing in the conventional asphalt film heating test is large, and the cleaning work of the aging plate is complicated, so that a large amount of time and labor are unconsciously wasted in the process of multiple tests, and a certain amount of damage is caused to the environment.
Disclosure of Invention
The utility model aims to provide an aging tray for an oven, which solves the problem that the existing asphalt can be stuck on the aging tray, so that the aging tray is complicated to clean.
In order to achieve the purpose, the utility model adopts the technical scheme that:
the utility model provides an aging plate for an oven, which comprises an aging plate body, wherein a detachable shaft is arranged at the center of an inner cavity of the aging plate body; the detachable shaft is rotatably connected with a scraper, and a heating unit is arranged in an inner cavity of the scraper.
Preferably, the heating unit comprises a resistance wire, and the resistance wire is installed in an inner cavity of the scraper; the power end of the resistance wire is connected with a control switch, and the control switch is connected with an external power line.
Preferably, a plurality of heating gears are arranged on the control switch.
Preferably, the resistance wire is of a helical structure.
Preferably, a baffle is also rotatably connected to the detachable shaft.
Preferably, the free end of the baffle is provided with a bayonet which is clamped on the side wall of the aging disc body.
Preferably, one end of the baffle is movably connected with one end of the scraper, and the movable connecting end is rotatably connected with the detachable shaft.
Preferably, the working end of the scraper is in contact with the bottom and the inner side wall of the ageing pan body.
Compared with the prior art, the utility model has the beneficial effects that:
according to the aging plate for the oven, the scraper is arranged on the aging plate, the heating unit is arranged on the scraper, the scraper is heated through the heating unit, and the heated scraper is beneficial to scraping asphalt; and then the asphalt adhered on the aging plate can be cleaned simply and quickly.
Drawings
FIG. 1 is a schematic diagram of a structure to which the present invention relates;
FIG. 2 is a schematic view of the construction of the baffle and scraper;
FIG. 3 is a schematic structural view of an aging tray body;
the aging device comprises a aging disc body 1, a resistance wire 3, a scraper 4, a detachable shaft 5, a baffle 6, a control switch 7 and an external power line.
Detailed Description
The utility model is further explained below with reference to the accompanying drawings.
Example 1
The utility model provides an aging plate for an oven, which comprises an aging plate body 1, wherein a detachable shaft 4 is arranged at the center of an inner cavity of the aging plate body 1; the detachable shaft 4 is rotatably connected with a scraper 3, and a heating unit is arranged in an inner cavity of the scraper 3.
Example 2
The utility model provides an aging plate for an oven, which comprises an aging plate body 1, wherein a detachable shaft 4 is arranged at the center of an inner cavity of the aging plate body 1; the detachable shaft 4 is rotatably connected with a scraper 3, and a heating unit is arranged in an inner cavity of the scraper 3.
The heating unit comprises a resistance wire 2, and the resistance wire 2 is arranged in an inner cavity of the scraper 3; the power end of the resistance wire 2 is connected with a control switch 6, and the control switch 6 is connected with an external power line 7.
Example 3
As shown in fig. 1 to 3, the utility model provides an aging plate for an oven, which comprises an aging plate body 1, a resistance wire 2, a scraper 3, a detachable shaft 4, a baffle 5, a control switch 6 and an external power line 7, wherein the resistance wire 2 is arranged in an inner cavity formed by the scraper 3; the detachable shaft 4 is installed at the center of the aging tray body 1.
One end of the baffle 5 is connected with one end of the scraper 3, and the baffle 5 is used for fixing the scraper 3.
The connecting ends of the baffle 5 and the scraper 3 are fixed on the detachable shaft 4.
The resistance wire 2 is connected with a control switch 6 through an external lead; the control switch 6 is connected with an external power line 7.
The control switch 6 is provided with a plurality of heating gears.
The resistance wire 2 is arranged in a spiral structure, and the contact area with the scraper 3 is increased.
The working end of the scraper 3 is contacted with the bottom and the inner side wall of the aging disc body 1.
The free end of the baffle 5 is provided with a bayonet 501, and the bayonet 501 is clamped on the side wall of the aging tray body 1.
When in work:
after the asphalt film heating aging test is finished, the mass of the aged asphalt needs to be weighed. Due to the reduction of the temperature, the fluidity of the asphalt is reduced, the asphalt is slowly solidified, and the recovery of the aged asphalt in the state can reduce the consumption of the recovered asphalt and cause serious quality loss, thereby causing great errors of test results.
So, weigh the back pitch ageing after experimental the back before, can install scraper 3 and baffle 5 on ageing dish body 1 through dismantling axle 4 earlier, because the wire of scraper 3 is connected with control switch 6, at this moment only need connect external power supply line 7 with control switch 6, heat scraper 3, and scraper 3 after the heating is convenient for scrape pitch. Due to the different heating positions of the control switch 6, the scraper should be heated to a suitable temperature according to the actual situation.
After the collection work is finished, the scraper 3 and the baffle 5 can be detached through the detachable shaft 4, and the cleaning work of the aging disc body 1 and the scraper 3 is carried out. And weighing the collected asphalt to judge the quality change of the asphalt before and after aging so as to judge the aging performance of the asphalt. If the quality change of the asphalt is not measured, the collected asphalt can be placed in a heating furnace to be heated, is properly stirred to be fully melted to be in a flowing state, is poured into a needle penetration sample container or a testing mold of ductility, softening point and the like, and is subjected to corresponding tests of residues of various films such as needle penetration and the like after being heated according to a specified method.
The above has been a description of the principles and embodiments of the present invention, and the description of the embodiments herein is only applicable to help understand the method and the core idea of the present invention, and the embodiments of the present invention are not considered to be limited thereto; meanwhile, for a person skilled in the art, various modifications or changes can be made in the specific embodiments and the application range according to the idea of the present invention, and in summary, the content of the present specification should not be construed as the above limitation of the utility model.
Claims (8)
1. The aging plate for the oven is characterized by comprising an aging plate body (1), wherein a detachable shaft (4) is arranged at the center of the inner cavity of the aging plate body (1); the detachable shaft (4) is rotatably connected with a scraper (3), and a heating unit is installed in an inner cavity of the scraper (3).
2. A retrogradation dish for ovens according to claim 1, characterized in that said heating unit comprises a resistance wire (2), said resistance wire (2) being mounted in the inner cavity of a scraper (3); the power end of the resistance wire (2) is connected with a control switch (6), and the control switch (6) is connected with an external power line (7).
3. A burn-in tray for an oven according to claim 2, characterised in that a plurality of heating steps are provided on the control switch (6).
4. A weathering disc for ovens, according to claim 2, characterized in that the resistance wire (2) is of helical structure.
5. A ageing tray for ovens according to claim 1, characterized in that the removable shaft (4) is also rotatably connected with a baffle (5).
6. The aging tray for the oven according to claim 5, characterized in that the free end of the baffle (5) is provided with a bayonet (501), and the bayonet (501) is clamped on the side wall of the aging tray body (1).
7. A ageing tray for ovens according to claim 5, characterized in that one end of the flap (5) is articulated to one end of the scraper (3), the articulated end being rotatably connected to the detachable shaft (4).
8. A aging tray for an oven according to claim 1, characterized in that the working ends of the scrapers (3) are in contact with the bottom and inner side walls of the aging tray body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122385290.4U CN215910313U (en) | 2021-09-29 | 2021-09-29 | A ageing dish for oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122385290.4U CN215910313U (en) | 2021-09-29 | 2021-09-29 | A ageing dish for oven |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215910313U true CN215910313U (en) | 2022-02-25 |
Family
ID=80311576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122385290.4U Active CN215910313U (en) | 2021-09-29 | 2021-09-29 | A ageing dish for oven |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215910313U (en) |
-
2021
- 2021-09-29 CN CN202122385290.4U patent/CN215910313U/en active Active
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