CN108359257B

CN108359257B - Structure of warm-mixing regenerant

Info

Publication number: CN108359257B
Application number: CN201810454935.5A
Authority: CN
Inventors: 周刚
Original assignee: Chongqing Jiaotong University
Current assignee: Chongqing Jiaotong University
Priority date: 2018-05-14
Filing date: 2018-05-14
Publication date: 2022-12-13
Anticipated expiration: 2038-05-14
Also published as: CN108359257A

Abstract

The invention belongs to the technical field of asphalt regenerants, and particularly discloses a structure of a warm-mixing regenerant, which comprises a capsule shell and a regenerant, wherein the regenerant consists of waste engine oil, graphene, light oil and desulfurized rubber powder, is in a liquid state and is contained in the capsule shell, and the capsule shell comprises a shell cap, a shell body matched with the shell cap and a packaging ring for sealing the joint of the shell cap and the shell body; an insertion groove for inserting the shell is formed in the end portion of the opening in the shell cap, the insertion groove is in interference fit with the shell, a flow channel is formed in one end, away from the shell, of the insertion groove, the flow channel is communicated with the interior of the shell cap, and a filling opening is formed in the shell cap and communicated with the insertion groove; one end of the shell, which is close to the shell cap, is provided with a drainage groove, and the drainage groove is communicated with the insertion groove; the material of the packaging ring is the same as that of the shell cap and the shell. The invention aims to solve the problems that the regenerant is difficult to transport and the dosage is difficult to control when in use.

Description

Structure of warm-mixing regenerant

Technical Field

The invention belongs to the technical field of asphalt regenerants, and particularly discloses a structure of a warm-mix regenerant.

Background

The high-grade highway in China is mainly made of asphalt pavement, most of the asphalt pavement in China enters the peak period of maintenance and maintenance according to the design service life of 15 years or 20 years, and the medium maintenance and the overhaul maintenance are frequent. The conventional maintenance method is to pave the old asphalt surface layer and then spread the newly mixed asphalt mixture, or to recycle the old asphalt mixture by a regeneration technology, and to apply the regenerated asphalt mixture to the middle and lower surface layers of the asphalt pavement. The waste asphalt pavement regeneration is an efficient and environment-friendly construction waste recycling technology, although the road performance of the waste asphalt mixture cannot meet the standard requirement, the waste asphalt mixture can be recycled through special treatment, so that firstly, the using amount of new asphalt and new aggregates can be reduced, and the maintenance cost of the asphalt pavement and the disposal cost of waste RAP (rare earth asphalt) materials are reduced; and secondly, the pollution to the environment caused by stone exploitation and waste material treatment can be effectively avoided, the social and economic benefits are remarkable, and the strategic deployment of national sustainable development is met.

At present, the plant mixing hot recycling technology is the most commonly applied in the waste asphalt mixture recycling technology in China. The plant mixing thermal regeneration is to transport the old asphalt pavement back to a mixing plant after digging, then intensively crush the old asphalt pavement into the waste asphalt, then put the regenerant and the waste asphalt into a mixing furnace to be heated and mixed to modify the waste asphalt, and then put the new asphalt, the new aggregate and the like into the mixing furnace to be heated and mixed to finally generate the regenerated asphalt. This process needs to drop into regenerant, new pitch and new aggregate etc. successively, and operating procedure is many, and is comparatively troublesome, and current regenerant all is liquid, multi-purpose barrelling, and most are artifical topples over the regenerant in the mix stove, and its quantity is difficult to control, uses plastic drum splendid attire regenerant still need consider leak-proof, anticollision scheduling problem, the transportation of being not convenient for, so the structure of current regenerant remains to be improved. Meanwhile, domestic researchers develop various plant-mixed hot recycling regenerants based on a component regulation theory, a compatibility theory and a rubber theory, but most of the entity projects have poor using effects, mainly because the domestic regenerants lack stability and high efficiency and have insufficient durability, and the mixing proportion of the waste asphalt mixture is lower than 35%, the comprehensive utilization rate of the waste asphalt mixture is not high, the water stability and the low-temperature crack resistance of the recycled asphalt mixture are poor, and the difference is large compared with that of the domestic researchers. In conclusion, the existing regenerants have certain defects in structure and formula, and the improvement of the existing regenerants is urgently needed.

Disclosure of Invention

The invention aims to provide a structure of a warm-mixing regenerant, which solves the problems that the regenerant is inconvenient to transport and the dosage is not easy to control when in use.

In order to achieve the purpose, the basic scheme of the invention is as follows: a structure of a warm-mixing regenerant is of a capsule structure and comprises a capsule shell and a regenerant, wherein the regenerant mainly comprises waste engine oil, graphene, light oil and desulfurized rubber powder, and the capsule shell comprises a shell cap, a shell matched with the shell cap and a packaging ring for sealing the joint of the shell cap and the shell; the end part of the opening on the shell cap is provided with an insertion groove for inserting the shell, the insertion groove is in interference fit with the shell, a flow channel is arranged in the insertion groove, the flow channel is close to one end, far away from the shell, of the insertion groove, a distance is reserved between the flow channel and one end, far away from the shell, of the insertion groove, the flow channel is communicated with the interior of the shell cap, and a filling opening is further formed in the shell cap and communicated with the insertion groove; one end of the shell body close to the shell cap is provided with a drainage groove, and the drainage groove is communicated with the insertion groove and is positioned below the filling opening; the material of the packaging ring is the same as that of the shell cap and the shell.

The working principle and the beneficial effects of the basic scheme are as follows:

1. the warm-mixed regenerant comprises a capsule shell and a liquid regenerant inside the capsule shell. During manufacturing, the shell is inserted into the insertion groove of the shell cap, the filling opening, the drainage groove, the insertion groove and the flow channel are sequentially communicated to form a space for the warm-mixed regenerant to pass through, then the warm-mixed regenerant is filled into the insertion groove from the filling opening, the shell is completely inserted into the insertion groove after filling, the flow channel is blocked by the shell, the warm-mixed regenerant is blocked in a cavity formed between the shell cap and the shell, meanwhile, the drainage groove is staggered with the filling opening, and the filling opening is also blocked, so that the sealing performance of the capsule shell is improved. And finally, melting the packaging ring to 80-90 ℃ to package the joint of the shell and the shell cap. In the scheme, the shell cap, the shell and the packaging ring are all made of fiber materials, polyolefin materials and desulfurized rubber powder, the melting temperature of the fiber materials, the polyolefin materials and the desulfurized rubber powder is 80-120 ℃, and the temperature in the range is close to the mixing temperature of asphalt during regeneration, so that after the shell cap, the shell and the packaging ring are put into mixing equipment, the shell cap, the shell and the packaging ring can be melted, and the warm-mixed regenerant and the waste asphalt are mixed. In the prior art, the warm-mixed regenerant is generally stored in a plastic cylinder and is poured manually when in use, so that the dosage of the warm-mixed regenerant is not easy to control. In the scheme, after the shell cap and the shell are manufactured, the volume of the cavity between the shell cap and the shell is determined, and the quality of the warm-mixed regenerant capable of being stored is also determined, so that only a corresponding number of the warm-mixed regenerants are required to be added during use, and the using amount of the warm-mixed regenerant is easy to control.

2. The fiber material and the polyolefin material can obviously improve the flexibility and the toughness of the regenerated asphalt mixture, and improve the water stability, the low-temperature crack resistance and the fatigue resistance of the regenerated asphalt mixture, so that the fiber material and the polyolefin material can promote the asphalt regeneration, and after the shell cap, the shell and the packaging ring are melted in mixing equipment, the waste asphalt regeneration cannot be adversely affected, and the flexibility and the toughness of the regenerated asphalt can be improved.

3. The waste asphalt needs to be heated during regeneration, the performance of the asphalt can be reduced by repeatedly heating the asphalt at high temperature, and the warm-mixing regenerant in the scheme can play a role in reducing the mixing temperature of the waste asphalt mixture, so that the asphalt performance is prevented from being influenced by high-temperature heating.

4. The regenerant is a liquid, so it is not easy to contain and fill ordinary capsules, and these capsules can also adversely affect bitumen regeneration. If the capsule is not filled, air in the capsule may remain in the mixing equipment after the capsule is put into the mixing equipment, so that a large amount of air bubbles exist in the regenerated asphalt, and the quality of the regenerated asphalt is affected. In the scheme, the shell cap and the shell can be plugged together, so that the shell cap and the shell form a cavity capable of containing the warm-mixed regenerant, and the warm-mixed regenerant is poured into the cavity through the pouring port, so that the capsule shell can be filled, air cannot exist, and the problem is avoided.

5. In the prior art, fiber, rubber powder and the like are added into some regenerants, and the rubber powder and the fiber also play a toughening role. The warm-mixing regenerant comprises a regenerant and a capsule shell, wherein the regenerant is in a liquid state, and the capsule shell is in a solid state. The liquid regenerant is free of fiber and polyethylene materials, and the rubber powder content is low, namely, the scheme is different from the prior art in that the fiber and part of the rubber powder in the common regenerant are separated, and the polyethylene materials are added after the using amount of the fiber and part of the rubber powder is adjusted to form the capsule shell capable of containing the liquid regenerant. Therefore, the warm-mixed regenerant in the scheme comprises a liquid regenerant part and a solid capsule shell part in form, and the liquid regenerant part and the solid capsule shell part can form a complete warm-mixed regenerant after being heated again, so that the effect of regenerating waste asphalt is achieved.

Furthermore, the shell is provided with a packaging groove for accommodating the melted packaging ring, and the packaging groove inclines towards the joint of the shell and the shell cap. This scheme of adoption is convenient for fill the junction of casing and shell cap with the encapsulation circle after melting, improves sealing performance.

Further, the shell cap and the packaging ring comprise rubber layers, the rubber layers are made of desulfurized rubber powder, and the inside of each rubber layer is uniformly dispersed with the polyethylene material and the fibers.

Further, the regenerant is contained within a capsule shell. This scheme of adoption, the regenerant splendid attire is convenient for transport in the capsule shell.

Further, the regenerant comprises the following components in parts by weight: 2-5 parts of waste engine oil; 0.05 part to 0.5 part of graphene; 2-3.5 parts of light oil; 0.5 to 1.5 parts of glycerolipid; 0.9 to 1.35 portions of desulfurized rubber powder. Different from the existing regenerants, the warm-mixing regenerant in the scheme contains a large amount of light oil, waste engine oil and glyceride, the boiling point and the flash point of the light oil, the waste engine oil and the glyceride are lower, the viscosity of the asphalt is reduced on the premise of not changing the pavement performance, the asphalt is easier to melt, and the mixing temperature is lower. The light oil, the waste engine oil and the glyceride are good solvents, so that asphalt can be conveniently melted in the solvents, and the warm-mixing regenerant in the scheme can reduce the mixing temperature of the asphalt mixture and is convenient for production mixing. Meanwhile, after the viscosity of the asphalt is reduced by the light oil component, the waste engine oil and the glyceride, the mixing of the asphalt is facilitated, the lower the viscosity is, the mixing amount of the waste asphalt can be relatively increased, and therefore the mixing ratio of the waste asphalt can be increased by the warm mixing regenerant in the scheme.

Further, the regenerant comprises the following components in parts by weight: 3.5 parts of waste engine oil; 0.3 part of graphene; 3.3 parts of light oil; 1 part of glyceride; 1 part of desulfurized rubber powder. In the scheme, the mixing temperature of 15 ℃ can be reduced by adding the waste engine oil, the light oil component and the glycerolipid.

Further, the capsule shell comprises the following components in parts by weight: 0.1 to 0.2 portion of fiber; 0.3-0.5 parts of polyolefin material; 0.3 to 0.45 portion of desulfurized rubber powder. The materials such as the fiber, the desulfurized rubber powder and the like can improve the high-low temperature performance and the water damage resistance of the regenerated asphalt mixture, and further can improve the mixing ratio of the waste asphalt mixture under the same technical index requirement.

Further, the capsule shell comprises the following components in parts by weight: 0.11 part of fiber; 0.46 part of polyolefin material; 0.33 part of desulfurized rubber powder. The addition amount of the fiber, the polyethylene material and the release rubber powder in the scheme can ensure that the stability of the regenerated asphalt mixture reaches 8.9MPa and the dynamic stability reaches 4329 times/mm.

Further, the preparation method comprises the following steps:

the method comprises the following steps: fully stirring and mixing the waste engine oil, the graphene, the light oil component, the glycerolipid material and the desulfurized rubber powder at the temperature of 60-80 ℃, and cooling to normal temperature to prepare a regenerant;

step two: fully mixing a fiber material, a polyethylene material and desulfurized rubber powder at the temperature of 80-110 ℃, pouring the mixture into a formed grinding tool at high temperature, and cooling the mixture to normal temperature to prepare a shell, a shell cap and a packaging ring;

step three: the shell cap is incompletely inserted into the shell to form a cavity for containing the regenerant, so that the filling port, the drainage groove, the insertion groove and the flow channel are sequentially communicated to form a space for the regenerant to pass through, the regenerant is filled into the cavity from the filling port, and then the shell cap is completely inserted into the shell;

step four: heating the packaging ring to 80-90 ℃ for melting, filling the melted packaging ring in a packaging groove for packaging, and finally cooling the packaging ring to the normal temperature. The regenerant prepared by the scheme and the capsule shell can form the finished warm-mixing regenerant. In addition, in the scheme, the preparation of the regenerant and the preparation of the capsule shell are not interfered with each other and can be carried out simultaneously, so that the production period is greatly shortened. The subsequent filling and packaging operations are also very simple and fast.

Drawings

FIG. 1 is a schematic diagram of the structure of a warm-mix regenerant according to an embodiment;

FIG. 2 is a cross-sectional view of the shell cap of FIG. 1;

fig. 3 is a schematic view of the structure when the housing cap is not completely inserted into the housing.

Detailed Description

The present invention will be described in further detail below by way of specific embodiments:

reference numerals in the drawings of the specification include: the device comprises a shell cap 1, a shell 2, a pouring opening 3, an insertion groove 4, a drainage groove 5, a packaging groove 6 and a flow passage 7.

The first embodiment is as follows:

as shown in fig. 1, the structure of the warm-mixed regenerant of the present embodiment includes a regenerant and a capsule shell. The mass of the components in the regenerant is as follows: 2kg of waste engine oil, 0.05kg of graphene, 2kg of light oil component, 0.5kg of glycerolipid and 0.9kg of desulfurized rubber powder. The capsule shell comprises the following components in parts by mass: 0.1kg of fiber, 0.3kg of polyolefin material and 0.3kg of desulfurized rubber powder. The capsule shell comprises a shell cap 1, a shell body 2 and an encapsulation ring. As shown in fig. 2 and 3, an annular insertion groove 4 is circumferentially arranged at the left end of the shell cap 1, a flow channel 7 is arranged at the bottom of the right part of the insertion groove 4, the flow channel 7 is 1cm away from the right end part of the insertion groove 4, a pouring opening 3 is arranged on the shell cap 1, and the pouring opening 3 is communicated with the insertion groove 4. The right-hand member of casing 2 is equipped with drainage groove 5, and drainage groove 5 can insert groove 4 intercommunications. The shell 2 is circumferentially provided with an annular packaging groove 6, and the packaging groove 6 inclines rightwards. The capsule shell also comprises a sealing ring, and the sealing ring is filled into the sealing groove 6 after being melted so as to seal the shell cap 1 and the shell body 2.

The preparation process comprises the following steps:

the method comprises the following steps: under the condition of 80 ℃, 2kg of used oil, 0.05kg of graphene, 2kg of light oil component, 0.5kg of glycerolipid and 0.9kg of desulfurized rubber powder are fully stirred and mixed, and cooled to normal temperature to prepare a regenerant;

step two: fully mixing 0.1kg of fiber, 0.3kg of polyolefin material and 0.3kg of desulfurized rubber powder at the temperature of 80 ℃, pouring the mixture into a formed grinding tool at high temperature, and cooling the mixture to normal temperature to prepare a shell 2, a shell cap 1 and a packaging ring;

step three: the shell cap 1 is incompletely inserted into the shell 2 to form a cavity for containing the regenerant, so that the filling port 3, the drainage groove 5, the insertion groove 4 and the flow channel 7 are sequentially communicated to form a space for the regenerant to pass through, the regenerant is filled into the cavity from the filling port 3, and then the shell cap 1 is completely inserted into the shell 2;

step four: and heating the packaging ring to 80 ℃ for melting, filling the melted packaging ring in the packaging groove 6 for packaging, and finally cooling the packaging ring to the normal temperature.

Example two:

the difference from the first embodiment lies in that the mixture ratio of the warm-mixed regenerant is different, specifically, the mass of the regenerant components is as follows: 5kg of waste engine oil, 0.5kg of graphene, 3.5kg of light oil component, 1.5kg of glycerolipid and 1.35kg of desulfurized rubber powder. The capsule shell comprises the following components in parts by mass: 0.2kg of fiber, 0.5kg of polyolefin material and 0.45kg of desulfurized rubber powder.

Example three:

the difference from the first embodiment lies in that the mixture ratio of the warm-mixing regenerant is different, specifically, the mass of the regenerant components is as follows: 3.5kg of waste engine oil, 0.3kg of graphene, 3.3kg of light oil component, 1kg of glycerolipid and 1kg of desulfurized rubber powder. The capsule shell comprises the following components in parts by mass: 0.11kg of fiber, 0.46kg of polyolefin material and 0.33kg of desulfurized rubber powder.

Example four:

the difference from the first embodiment lies in that the mixture ratio of the warm-mixed regenerant is different, specifically, the mass of the regenerant components is as follows: 3.8kg of waste engine oil, 0.3kg of graphene, 3.2kg of light oil component, 0.8kg of glycerolipid and 1kg of desulfurized rubber powder. The capsule shell comprises the following components in parts by mass: 0.1kg of fiber, 0.5kg of polyolefin material and 0.3kg of desulfurized rubber powder.

Example five:

the difference from the first embodiment lies in that the mixture ratio of the warm-mixed regenerant is different, specifically, the mass of the regenerant components is as follows: 4kg of waste engine oil, 1kg of graphene, 3.3kg of light oil component, 1kg of glycerolipid and 0.9kg of desulfurized rubber powder. The capsule shell comprises the following components in parts by mass: 0.1kg of fiber, 0.3kg of polyolefin material and 0.3kg of desulfurized rubber powder.

Experimental example:

experimental group 1: 10kg of the warm-mixed regenerant A prepared in the embodiment 1 is put into a mixing furnace, and waste RAP, new asphalt and new aggregate are added to prepare a regenerated asphalt mixture A test piece;

experimental group 2: 10kg of the warm-mixed regenerant B prepared in the embodiment 2 is put into a mixing furnace, and the waste RAP, the new asphalt and the new aggregate are added to prepare a regenerated asphalt mixture B test piece;

experimental group 3: 10kg of the warm-mixed regenerant C prepared in the embodiment 3 is put into a mixing furnace, and the waste RAP, the new asphalt and the new aggregate are added to prepare a regenerated asphalt mixture C test piece;

experimental group 4: 10kg of the warm-mixed regenerant D prepared in the embodiment 4 is put into a mixing furnace, and waste RAP, new asphalt and new aggregate are added to prepare a regenerated asphalt mixture D test piece;

experimental group 5: 10kg of the warm-mixed regenerant E prepared in the embodiment 3 is put into a mixing furnace, and waste RAP, new asphalt and new aggregate are added to prepare a regenerated asphalt mixture E test piece;

control group 1: preparing warm-mixing regenerant F from 0.3kg of graphene, 7kg of light oil component, 0.1kg of fiber, 1.3kg of desulfurized rubber powder, 0.5kg of polyolefin material and 0.8kg of glyceride material, putting 10kg of warm-mixing regenerant F into a mixing furnace, and adding waste RAP, new asphalt and new aggregate to prepare a regenerated asphalt mixture F test piece;

control group 2: 3.8kg of waste engine oil, 3.2kg of light oil component, 0.2kg of fiber, 1.5kg of desulfurized rubber powder, 0.5kg of polyolefin material and 0.8kg of glyceride material are prepared into warm-mixed regenerant G, 10kg of warm-mixed regenerant G is put into a mixing furnace, and waste RAP, new asphalt and new aggregate are added to prepare a regenerated asphalt mixture G test piece;

control group 3: preparing a warm-mixing regenerant H from 3.8kg of waste engine oil, 0.3kg of graphene, 3.2kg of light oil, 0.9kg of fibers, 1kg of polyolefin material and 0.8kg of glycerolipid material, putting 1kg of warm-mixing regenerant H into a mixing furnace, and adding waste RAP, new asphalt and new aggregate to prepare a regenerated asphalt mixture H test piece;

control group 4: putting 10kg of a common regenerant I into a mixing furnace, and adding waste RAP, new asphalt and new aggregate to prepare a regenerated asphalt mixture I test piece;

measuring the mixing temperature of the experimental group and the control group through a mixing test;

the water stability of the experimental group and the control group is verified by a freeze-thaw splitting test and a water immersion marshall test according to the experimental procedures of road engineering asphalt and asphalt mixtures (JTG E20-2011) T0729-2000 and T0729-2011;

the low-temperature crack resistance of the experimental group and the control group is verified through a trabecular low-temperature bending test according to the experimental procedure of asphalt and asphalt mixtures for road engineering (JTG E20-2011) T0728-2000.

The test results are shown in the following table:

the analysis of the test results shows that:

1. compared with the test pieces F and I, the test piece B has the advantages that the mixing temperature is respectively reduced by 6 ℃ and 19 ℃ in the process of adding waste RAP, new asphalt and new aggregate and mixing because the mixing amount of the waste engine oil in the test piece B is higher; compared with the test piece B, although the light oil content in the test piece F is higher, the mixing temperature of the test piece F is relatively higher by 9 ℃ in the mixing process of manufacturing the test piece F because the waste engine oil is not mixed in the test piece F, so that whether the waste engine oil is added directly influences the mixing temperature of the regenerated asphalt mixture. Meanwhile, compared with the D test piece, although the mixing temperature is increased, the mixing temperature is increased by only 5 ℃ due to the higher mixing amount of the light oil in the F test piece, so that the influence of the light oil on the mixing temperature can be seen.

2. The mixing ratio of various materials in the D test piece and the E test piece is approximately same, the mixing temperature, the stability, the residual stability and the damage strain reduction amplitude of the D test piece are not large under the condition that the mixing ratio of the waste asphalt mixture is higher than that of the E test piece, and the dynamic stability is improved on the contrary, which shows that the mixing ratio of the waste asphalt mixture can be improved by the regenerated asphalt mixture.

3. The ratio of the waste engine oil, the light oil content and the glyceride material to the graphene, the desulfurized rubber powder, the fiber and the polyolefin material in the test piece A is smaller than that of the waste engine oil, the light oil content and the glyceride material to the graphene, the desulfurized rubber powder, the fiber and the polyolefin material in the test piece E, and the mixing temperature is increased by 5 ℃; meanwhile, the ratios of the waste engine oil, the light oil content and the glyceride material to the graphene, the desulfurized rubber powder, the fiber and the polyolefin material in the test piece B and the test piece E are equal, and the mixing temperature is close to that of the graphene, the desulfurized rubber powder, the fiber and the polyolefin material. Therefore, the contents of the waste engine oil, the light oil and the glyceride materials in the recycled asphalt mixture directly influence the mixing temperature.

4. Compared with the D test piece, the H test piece is not doped with the desulfurized rubber powder, so that the mixing temperature is increased by 3 ℃ in the mixing process of manufacturing the H test piece, and therefore, the desulfurized rubber powder has certain influence on the mixing temperature.

5. Compared with the D test piece, the G test piece is not doped with graphene, so that the water stability, the low-temperature crack resistance and the fatigue resistance of the G test piece are relatively low. Compared with the D test piece, the H test piece is not doped with the desulfurized rubber powder, so that the water stability, the low-temperature crack resistance and the fatigue resistance of the H test piece are relatively low. Therefore, whether the graphene and the desulfurized rubber powder are added or not is proved to directly influence the water stability, the low-temperature crack resistance and the fatigue resistance of the test piece.

6. The ratio of the waste engine oil, the light oil content and the glycerin material to the graphene, the fiber and the polyolefin material in the H test piece is equal to the ratio of the light oil content and the glycerin material to the graphene, the fiber and the polyolefin material in the D test piece, but the water stability, the low-temperature crack resistance and the fatigue resistance of the H test piece are better than those of the F test piece due to the fact that the fiber and the polyolefin material are more doped than those of the F test piece, and therefore the fiber and the polyolefin material also have certain influence on the water stability, the low-temperature crack resistance and the fatigue resistance of the regenerated asphalt mixture test piece.

The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent.

Claims

1. A warm-mixing regenerant is characterized in that: the capsule shell comprises a shell cap, a shell body matched with the shell cap and a packaging ring used for sealing the joint of the shell cap and the shell body; an insertion groove for inserting the shell is formed in the end portion of the opening in the shell cap, the insertion groove is in interference fit with the shell, a flow channel is arranged in the insertion groove, a distance is reserved between one end, close to the shell, of the flow channel and one end, far away from the shell, of the insertion groove, the flow channel is communicated with the interior of the shell cap, a filling opening is further formed in the shell cap, and the filling opening is communicated with the insertion groove; one end of the shell body close to the shell cap is provided with a drainage groove, and the drainage groove is communicated with the insertion groove and is positioned below the filling opening; the material of the packaging ring is the same as that of the shell cap and the shell;

the regenerant comprises the following components in parts by weight: 2-5 parts of waste engine oil; 0.05 part to 0.5 part of graphene; 2-3.5 parts of light oil; 0.5 to 1.5 parts of glycerolipid; 0.9 to 1.35 portions of desulfurized rubber powder;

the capsule shell comprises the following components in parts by weight: 0.1 to 0.2 portion of fiber; 0.3-0.5 parts of polyolefin material; 0.3 to 0.45 portion of desulfurized rubber powder.

2. A warm-mix regenerant according to claim 1, wherein: and the shell is provided with a packaging groove for accommodating the melted packaging ring, and the packaging groove inclines towards the joint of the shell and the shell cap.

3. A warm-mix regenerant according to claim 2, wherein: the shell, the shell cap and the packaging ring comprise rubber layers, the rubber layers are made of desulfurized rubber powder, and polyolefin materials and fibers are uniformly dispersed in the rubber layers.

4. A warm-mix regenerant according to any one of claims 1 to 3, wherein: the regenerant comprises the following components in parts by weight: 3.5 parts of waste engine oil; 0.3 part of graphene; 3.3 parts of light oil; 1 part of glyceride; 1 part of desulfurized rubber powder.

5. A warm-mix regenerant according to any one of claims 1 to 3, wherein: the capsule shell comprises the following components in parts by weight: 0.11 part of fiber; 0.46 part of polyolefin material; 0.33 part of desulfurized rubber powder.

6. A warm-mix regenerant according to any one of claims 1 to 3, characterized in that the preparation method comprises the steps of:

step two: fully mixing a fiber material, a polyolefin material and desulfurized rubber powder at the temperature of 80-110 ℃, pouring the mixture into a formed grinding tool at high temperature, and cooling the mixture to normal temperature to prepare a shell, a shell cap and a packaging ring;

step four: heating the packaging ring to 80-90 ℃ for melting, filling the melted packaging ring in a packaging groove for packaging, and finally cooling the packaging ring to the normal temperature.