Device for producing test sample of softening point of high-grade waterproof asphalt

Abstract

The utility model relates to building asphalt performance test technical field, concretely relates to the production device of high -grade waterproof asphalt softening point test sample, including sample preparation subassembly and refrigeration subassembly, sample preparation subassembly includes sample ring and from top to bottom superimposed upper cover plate, sample preparation board and lower bottom plate, one side of upper cover plate is hinged with sample preparation board, has opened sample preparation hole on sample preparation board, and the inner surface of sample preparation hole is in accord with the outer surface of sample ring, refrigeration subassembly includes the circulating pipeline that is located in the inside of upper cover plate and lower bottom plate, and the both ends of circulating pipeline are circulating liquid inlet and circulating outlet respectively, circulating liquid inlet connects the liquid tank export, and circulating outlet connects liquid tank import, is equipped with cooling coil pipe in liquid tank, and cooling coil pipe import connects condenser refrigerant export, and cooling coil pipe export connects condenser refrigerant import. The utility model discloses sample preparation process is more safe and simple, has reduced the operation difficulty of sample preparation, has improved the accuracy of high -grade waterproof asphalt softening point test.

Description

Technical Field

[0001] This utility model relates to the field of building asphalt performance testing technology, specifically to a device for preparing test samples for the softening point of high-grade waterproof asphalt. Background Technology

[0002] With the development of infrastructure, the application of waterproof membranes is becoming increasingly widespread. In recent years, besides road asphalt, asphalt for waterproof materials has become the most widely used type of asphalt. In 2019, the petrochemical industry jointly formulated the SH / T0981-2019 standard, "Asphalt for Waterproof Materials." This standard, based on the original JC / T2218-2014, further refines the classification of asphalt grades, retaining the traditional low-grade asphalt while adding three high-grade series: F150, F300, and F400. High-grade asphalt has changed the traditional method of adding softening oil during the production of modified asphalt waterproof membranes, simplifying the preparation process. Therefore, high-grade waterproof asphalt has become a development trend in waterproof materials and is attracting increasing attention from waterproofing companies. The softening point is an important performance indicator reflecting the temperature stability of waterproof asphalt, directly determining its quality. Therefore, accurate measurement of the softening point of waterproof asphalt is particularly important. The current standard stipulates that when preparing the sample, the asphalt must be poured into a ring while it is hot and has good fluidity. After cooling for 30 minutes, the convex liquid surface formed when it was hot should be scraped off with a hot scraper so that the upper surface of the asphalt is level and flush with the upper end of the sample ring before it can be tested.

[0003] However, in the actual preparation of test samples, high-grade waterproof asphalt has a low softening point and contains a large amount of light components. When cutting with a hot scraper, it produces a large amount of asphalt fumes. Asphalt fumes contain a large number of highly carcinogenic substances, which harm the health of operators and pollute the environment. High-grade waterproof asphalt also has high viscosity, and the surface pulling during cutting can easily damage the smoothness of the sample surface. The preparation of standard test samples is also more difficult. All of these factors contribute to the low accuracy of the softening point determination of high-grade waterproof asphalt.

[0004] Therefore, based on the above-mentioned technical problems, in order to solve the difficulties in the preparation of existing high-grade waterproof asphalt softening point test samples, it is urgent to develop a device for preparing high-grade waterproof asphalt softening point test samples, to ensure that the prepared softening point test samples are standardized, and to improve the accuracy of the determination of the softening point of high-grade waterproof asphalt. Utility Model Content

[0005] The technical problem to be solved by this utility model is to propose a device for preparing a test sample for the softening point of high-grade waterproof asphalt. The sample preparation process is more environmentally friendly, safe and simple, reduces the difficulty of sample preparation, and improves the accuracy of the test for the softening point of high-grade waterproof asphalt.

[0006] The apparatus for preparing high-grade waterproof asphalt softening point test samples according to this utility model includes a sample preparation component and a cooling component. The sample preparation component includes a sample ring and an upper cover plate, a sample preparation plate, and a lower base plate stacked from top to bottom. The lower surface of the upper cover plate and the upper surface of the sample preparation plate, as well as the lower surface of the sample preparation plate and the upper surface of the lower base plate, are tightly fitted together. One side of the upper cover plate is hinged to the sample preparation plate. A sample preparation hole is provided on the sample preparation plate. The inner surface of the sample preparation hole fits with the outer surface of the sample ring, and the height of the sample preparation hole is equal to the height of the sample ring. The cooling component includes a circulation pipeline located inside the upper cover plate and the lower base plate. The two ends of the circulation pipeline are a circulation inlet and a circulation outlet, respectively. The circulation inlet is connected to the outlet of the storage tank, and the circulation outlet is connected to the inlet of the storage tank. A cooling coil is provided inside the storage tank, and a refrigerant is provided inside the cooling coil. The inlet of the cooling coil is connected to the refrigerant outlet of the condenser, and the outlet of the cooling coil is connected to the refrigerant inlet of the condenser.

[0007] Preferably, the cooling coil inlet is connected to the condenser refrigerant outlet via the compressor, and the cooling coil outlet is connected to the condenser refrigerant inlet via a dryer filter.

[0008] Preferably, a circulation pump is provided on the circulation outlet.

[0009] Preferably, the liquid storage tank includes a liquid storage tank 1 and a liquid storage tank 2, and the circulation pipeline includes a circulation pipeline 1 inside the upper cover plate and a circulation pipeline 2 inside the lower bottom plate. The circulation outlet and circulation inlet of the circulation pipeline 1 are connected to the liquid storage tank 1, and the circulation outlet and circulation inlet of the circulation pipeline 2 are connected to the liquid storage tank 2.

[0010] Preferably, the side of the top cover plate that is not hinged to the sample plate is provided with a handle and a first lock, and the sample plate is provided with a second lock. The first lock and the second lock are used together to lock the top cover plate and the sample plate.

[0011] Preferably, the bottom of the sample plate is provided with a locking block, and the top of the bottom plate is provided with a locking groove corresponding to the locking block.

[0012] Preferably, the template is provided with force bars on both the left and right sides.

[0013] Preferably, the template is provided with a connecting groove corresponding to the force rod, the connecting groove is adapted to the end of the force rod, and the force rod is detachably connected to the template through the connecting groove.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. By combining the sample preparation component and the cooling component, the generation of a large amount of asphalt fumes is avoided, as well as the health hazards and flatness damage caused by manual sample cutting. The prepared sample surface is flat and the measurement results are more accurate.

[0016] 2. This utility model makes the preparation of high-grade waterproof asphalt softening point test samples simpler, safer, easier to operate, and more efficient in sample preparation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the refrigeration component structure;

[0018] Figure 2 This is a schematic diagram of the sample preparation component structure;

[0019] Figure 3 This is a schematic diagram of the disassembled structure of the sample preparation component;

[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of the sample preparation hole;

[0021] Figure 5 yes Figure 3 Another structural diagram from a different angle.

[0022] In the diagram: 1. Sample ring; 2. Upper cover plate; 3. Sample preparation plate; 4. Lower base plate; 5. Sample preparation hole; 6. Circulation inlet; 7. Circulation outlet; 81. Storage tank one; 82. Storage tank two; 9. Cooling coil; 10. Condenser; 11. Compressor; 12. Dryer filter; 13. Circulation pump; 14. Handle; 15. Lock one; 16. Lock two; 17. Locking block; 18. Locking groove; 19. Force rod; 20. Connecting groove. Detailed Implementation

[0023] The present invention will now be described clearly and completely with reference to the accompanying drawings.

[0024] Example 1

[0025] like Figure 1-3 As shown, the apparatus for preparing high-grade waterproof asphalt softening point test samples according to this utility model includes a sample preparation component and a cooling component. The sample preparation component includes a sample ring 1 and an upper cover plate 2, a sample preparation plate 3, and a lower base plate 4 stacked from top to bottom. The lower surface of the upper cover plate 2 and the upper surface of the sample preparation plate 3, as well as the lower surface of the sample preparation plate 3 and the upper surface of the lower base plate 4, are tightly fitted together. One side of the upper cover plate 2 is hinged to the sample preparation plate 3. The sample preparation plate 3 has a sample preparation hole 5. Figure 4 As shown, the inner surface of the sample preparation hole 5 fits the outer surface of the sample ring 1, and the height of the sample preparation hole 5 is equal to the height of the sample ring 1; the cooling assembly includes a circulation pipeline located inside the upper cover plate 2 and the lower base plate 4, with a circulation inlet 6 and a circulation outlet 7 at both ends of the circulation pipeline, respectively. The circulation inlet 6 is connected to the outlet of the storage tank, and the circulation outlet 7 is connected to the inlet of the storage tank. A cooling coil 9 is provided inside the storage tank, and a refrigerant is provided inside the cooling coil 9. The inlet of the cooling coil 9 is connected to the refrigerant outlet of the condenser 10, and the outlet of the cooling coil 9 is connected to the refrigerant inlet of the condenser 10.

[0026] The inlet of cooling coil 9 is connected to the refrigerant outlet of condenser 10 via compressor 11, and the outlet of cooling coil 9 is connected to the refrigerant inlet of condenser 10 via dryer filter 12.

[0027] A circulation pump 13 is installed on the circulation outlet 7.

[0028] The working process is as follows: The condenser 10 and compressor 11 are started for refrigeration. After the refrigerant is cooled by the condenser 10, it enters the cooling coil 9 in the liquid storage tank, which lowers the temperature of the cooling medium in the liquid storage tank. The cooling medium enters the circulation pipeline in the upper cover plate 2 and the lower bottom plate 4 through the circulation inlet 6, which cools the upper cover plate 2 and the lower bottom plate 4. After absorbing heat, the cooling medium is discharged from the circulation outlet 7 back to the liquid storage tank. After cooling to a certain temperature, the upper cover plate 2 is lifted. Isolation liquid is applied to the lower surface of the upper cover plate 2, the upper and lower surfaces of the sample plate 3, the upper surface of the lower base plate 4, and the side wall of the sample preparation hole 5. The sample plate 3 and the lower base plate 4 are first tightly fitted together. The sample ring 1 is placed into the sample preparation hole 5. High-grade waterproof asphalt heated to a fluid state is poured into the ring while maintaining good fluidity. After pouring, the upper cover plate 2 is placed on the sample plate 3, and the upper cover plate 2 and the sample plate 3 are tightly fitted together. At the same time, the cooling medium continues to circulate to cool the upper cover plate 2 and the lower base plate 4. After the asphalt in the sample ring 1 solidifies, the upper cover plate 2 is opened, and the sample plate 3 and the lower base plate 4 are separated. The sample ring 1 can then be removed. The sample obtained by one-time molding is full and flat.

[0029] Example 2

[0030] Based on Example 1, such as Figure 1 As shown, the liquid storage tank includes a first liquid storage tank 81 and a second liquid storage tank 82. The circulation pipeline includes a first circulation pipeline inside the upper cover plate 2 and a second circulation pipeline inside the lower base plate 4. The circulation outlet 7 and circulation inlet 6 of the first circulation pipeline are connected to the first liquid storage tank 81, and the circulation outlet 7 and circulation inlet 6 of the second circulation pipeline are connected to the second liquid storage tank 82. In this way, the cooling coils 9 in the first liquid storage tank 81 and the second liquid storage tank 82 are arranged in parallel and connected to the condenser 10 respectively, which improves the cooling efficiency of the upper cover plate 2 and the lower base plate 4.

[0031] Example 3

[0032] Based on Example 1, such as Figure 2 , Figure 3 As shown, the side of the upper cover plate 2 that is not hinged to the sample plate 3 is provided with a handle 14 and a first lock 15. The sample plate 3 is provided with a second lock 16. The first lock 15 and the second lock 16 work together to lock the upper cover plate 2 and the sample plate 3. The handle 14 facilitates the separation of the upper cover plate 2 and the sample plate 3, and the first lock 15 and the second lock 16 ensure that the upper cover plate 2 and the sample plate 3 remain tightly fitted when the sample solidifies.

[0033] Example 4

[0034] Based on Example 3, such as Figure 5 As shown, the bottom of the sample plate 3 is provided with a locking block 17, and the top of the bottom plate 4 is provided with a locking groove 18 corresponding to the locking block 17. The locking block 17 and the locking groove 18 make it difficult for the sample plate 3 and the bottom plate 4 to shift when they are attached, thus avoiding sample deformation.

[0035] The template 3 is equipped with force-applying rods 19 on both the left and right sides. When separating the template 3 from the bottom plate 4, the force-applying rods 19 can be used to apply force, making it more convenient.

[0036] The template 3 is provided with a connecting groove 20 corresponding to the force rod 19. The connecting groove 20 is adapted to the end of the force rod 19, and the force rod 19 is detachably connected to the template 3 through the connecting groove 20. After the template 3 and the lower base plate 4 are separated or attached, the force rod 19 can be pulled out from the connecting groove 20 to save space.

Claims

1. A device for preparing a test sample for the softening point of high-grade waterproof asphalt, characterized in that, The sample preparation assembly includes a sample ring (1) and a top cover plate (2), a sample preparation plate (3), and a bottom plate (4) stacked from top to bottom. The lower surface of the top cover plate (2) and the upper surface of the sample preparation plate (3), as well as the lower surface of the sample preparation plate (3) and the upper surface of the bottom plate (4), are tightly fitted together. One side of the top cover plate (2) is hinged to the sample preparation plate (3). A sample preparation hole (5) is provided on the sample preparation plate (3). The inner surface of the sample preparation hole (5) fits the outer surface of the sample ring (1). 5) The height is equal to the height of the sample ring (1); the cooling assembly includes a circulation pipeline located inside the upper cover plate (2) and the lower base plate (4). The two ends of the circulation pipeline are a circulation inlet (6) and a circulation outlet (7), respectively. The circulation inlet (6) is connected to the outlet of the storage tank, and the circulation outlet (7) is connected to the inlet of the storage tank. The storage tank is equipped with a cooling coil (9). The inlet of the cooling coil (9) is connected to the refrigerant outlet of the condenser (10), and the outlet of the cooling coil (9) is connected to the refrigerant inlet of the condenser (10).

2. The apparatus for preparing high-grade waterproof asphalt softening point test samples according to claim 1, characterized in that, The inlet of the cooling coil (9) is connected to the refrigerant outlet of the condenser (10) via the compressor (11), and the outlet of the cooling coil (9) is connected to the refrigerant inlet of the condenser (10) via the dryer filter (12).

3. The apparatus for preparing high-grade waterproof asphalt softening point test samples according to claim 1, characterized in that, A circulation pump (13) is installed on the circulation outlet (7).

4. The apparatus for preparing high-grade waterproof asphalt softening point test samples according to claim 1, characterized in that, The liquid storage tank includes a liquid storage tank 1 (81) and a liquid storage tank 2 (82). The circulation pipeline includes a circulation pipeline 1 inside the upper cover plate (2) and a circulation pipeline 2 inside the lower bottom plate (4). The circulation outlet (7) and circulation inlet (6) of the circulation pipeline 1 are connected to the liquid storage tank 1 (81), and the circulation outlet (7) and circulation inlet (6) of the circulation pipeline 2 are connected to the liquid storage tank 2 (82).

5. The apparatus for preparing high-grade waterproof asphalt softening point test samples according to claim 1, characterized in that, The top cover (2) is provided with a handle (14) and a first lock (15) on the side that is not hinged to the template (3). The template (3) is provided with a second lock (16). The first lock (15) and the second lock (16) are used together to lock the top cover (2) and the template (3).

6. The apparatus for preparing high-grade waterproof asphalt softening point test samples according to claim 1, characterized in that, The bottom of the template (3) is provided with a locking block (17), and the top of the bottom plate (4) is provided with a locking groove (18) corresponding to the locking block (17).

7. The apparatus for preparing high-grade waterproof asphalt softening point test samples according to claim 6, characterized in that, The template (3) has force rods (19) on both the left and right sides.

8. The apparatus for preparing high-grade waterproof asphalt softening point test samples according to claim 7, characterized in that, The template (3) is provided with a connecting groove (20) corresponding to the force rod (19). The connecting groove (20) is adapted to the end of the force rod (19). The force rod (19) is detachably connected to the template (3) through the connecting groove (20).

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