Reaction kettle for preparing asphalt additive

Abstract

The utility model relates to the technical field of asphalt additive processing, in particular to a reaction kettle based on asphalt additive manufacturing, which comprises a cylindrical reaction kettle, a stirring rod mechanism is arranged at the top of the cylindrical reaction kettle in a penetrating manner; the stirring rod mechanism comprises a rotating shaft and a plurality of stirring plate assemblies, the stirring plate assemblies are connected to the outer circle of the lower end of the rotating shaft in an annular array mode, and the upper end of the rotating shaft is connected with a driving device; the stirring plate assembly comprises a rectangular frame stirring plate and a plurality of elastic supporting rod pieces, one ends of the elastic supporting rod pieces penetrate through the rectangular frame stirring plate, the other ends of the elastic supporting rod pieces are connected with the rotating shaft, and the elastic supporting rod pieces are suitable for driving the rectangular frame stirring plate to move towards the inner wall of the cylindrical reaction kettle; the heating system is used for transmitting heat to the inner cavity of the cylindrical reaction kettle. The reaction kettle is reasonable in structure, raw materials on the inner wall of the reaction kettle can be scraped off to be stirred, the stirring uniformity of the raw materials is enhanced, the product quality is improved, discharging is easy, and the operation convenience is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of asphalt additive processing, in particular to a reaction kettle for making asphalt additives. Background Art

[0002] Low-temperature asphalt additives are asphalt binders formed by uniformly mixing road petroleum asphalt or modified asphalt with a polymer resin, rubber-like substances, surfactants, etc. in a certain proportion. The physical and chemical reactions between low-temperature asphalt additives and base asphalt can significantly reduce the high-temperature viscosity of asphalt, effectively improve the technical properties of asphalt mixtures such as resistance to low-temperature freezing and cracking and high-temperature stability, achieve low-temperature mixing, paving and rolling of asphalt mixtures, suppress smoke and purify air, and reduce environmental pollution. They are especially suitable for asphalt pavement construction under low-temperature conditions and relatively closed environments with high requirements. In the production process of USP recycled low-temperature asphalt additives, it is necessary to mix through a reactor to ensure the uniformity of the produced asphalt additives.

[0003] With respect to the above-mentioned related technologies, the inventors found that since the raw materials of asphalt additives have a certain viscosity, during the production process of the existing reactor, the raw materials of asphalt additives are easy to adhere to the inner wall of the reactor, resulting in poor mixing uniformity of various raw materials, reducing the quality of the product, and the processed asphalt additives are easy to adhere to the inner wall of the reactor, making it difficult to discharge the material, reducing the convenience of operation. Utility Model Content

[0004] The main technical problem solved by the utility model is to provide a reactor for making asphalt additives, which can scrape raw materials on the inner wall of the reactor for stirring, thereby enhancing the stirring uniformity of the raw materials, improving the quality of the product, facilitating the discharge of materials, and enhancing the convenience of operation.

[0005] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide a reaction kettle for making asphalt additives, comprising: a cylindrical reaction kettle, a stirring rod mechanism is provided on the top of the cylindrical reaction kettle;

[0006] The stirring rod mechanism comprises a rotating shaft and a plurality of stirring plate assemblies, wherein the stirring plate assemblies are connected in an annular array to the outer circle at the lower end of the rotating shaft, and the upper end of the rotating shaft is connected to a driving device;

[0007] The stirring plate assembly comprises a rectangular stirring plate and a plurality of elastic support rods, one end of the elastic support rod is passed through the rectangular stirring plate, and the other end is connected to the rotating shaft, suitable for driving the rectangular stirring plate to move toward the inner wall of the cylindrical reactor;

[0008] The invention also comprises a heating system for transmitting heat to the inner cavity of the cylindrical reactor.

[0009] By adopting the above technical scheme, when in use, various raw materials of asphalt additives are put into the cylindrical reactor, and the operating drive device is operated to drive the rotating shaft to rotate, thereby driving the stirring plate assembly to rotate to stir the raw materials. Since the rectangular frame stirring plate is connected to the rotating shaft through an elastic support rod, the elastic support rod drives the rectangular frame stirring plate to move toward the inner wall of the cylindrical reactor, thereby scraping off the raw materials attached to the inner wall of the cylindrical reactor and continuing to stir, and the heating system works to transfer heat to the raw materials in the cylindrical reactor. The high temperature environment reduces the viscosity of the asphalt additive, enhances the uniformity of stirring, and improves the quality of the asphalt additive.

[0010] In a preferred example, the utility model can be further configured as follows: the side walls of the rectangular frame stirring plate are spaced apart with circular holes having the same number as the elastic support rod members, the elastic support rod members include a support rod inserted into the circular holes and a spring sleeved on the outside of the support rod, one end of the spring is connected to the rectangular frame stirring plate in abutment with the other end of the spring is connected to the outer circle of the rotating shaft, one end of the support rod located in the inner cavity of the rectangular frame stirring plate is threadedly connected with a nut, an axial gap is provided between the nut and the inner wall of the rectangular frame stirring plate, and one end of the support rod is connected to the rotating shaft.

[0011] By adopting the above technical solution, the support rod is located in the circular hole and can slide. Under the elastic force of the spring, the rectangular frame stirring plate always has a tendency to move toward the inner wall of the cylindrical reactor, scraping off the raw materials attached to the inner wall of the cylindrical reactor.

[0012] In a preferred example, the utility model can be further configured as follows: a plurality of rolling limit assemblies are spaced apart and connected to one end of the rectangular frame stirring plate close to the inner wall of the cylindrical reactor, the rolling limit assemblies include a fixed plate connected to the rectangular frame stirring plate, a universal ball is connected to the fixed plate, the universal ball is in rolling contact with the inner wall of the cylindrical reactor, and a clearance gap is provided between the rectangular frame stirring plate and the inner wall of the cylindrical reactor, and the clearance gap is 1 to 2 mm.

[0013] By adopting the above technical solution, the universal ball rolls in contact with the inner wall of the cylindrical reactor, and a clearance gap is provided between the rectangular frame stirring plate and the inner wall of the cylindrical reactor, thereby avoiding friction between the rectangular frame stirring plate and the inner wall of the cylindrical reactor and reducing noise generated by stirring.

[0014] In a preferred example, the utility model can be further configured as follows: the inner cavity of the rectangular frame stirring plate is connected with a longitudinal inclined plate.

[0015] By adopting the above technical solution, since the longitudinal inclined plate is connected to the inner cavity of the rectangular frame stirring plate, the longitudinal inclined plate stirs various raw materials, thereby enhancing the uniformity of stirring.

[0016] The utility model can be further configured as follows in a preferred example: the cylindrical reactor comprises a cylinder, the upper end of the cylinder is connected to a cover plate, the lower end is connected to a conical cylinder, the lower end opening of the conical cylinder is connected to a discharge pipe, a switch valve is provided on the discharge pipe, the cover plate is connected to a feed pipe, and the upper end opening of the feed pipe is connected to a sealing plate.

[0017] By adopting the above technical solution and using a feed pipe, it is convenient to put a variety of raw materials to be mixed into the inner cavity of the cylindrical reactor. After the asphalt additive is produced, the switch valve is opened, and the rotating stirring plate assembly scrapes the asphalt additive attached to the inner wall of the cylindrical reactor and flows out from the discharge pipe, so that the asphalt additive is fully utilized. By using a conical cylinder, the asphalt additive in the cylinder can flow smoothly into the discharge pipe.

[0018] In a preferred example, the utility model can be further configured as follows: the lower connecting edge of the rectangular frame stirring plate is connected with a triangular frame, and the inclined edge of the triangular frame corresponds to the inner wall of the conical cylinder.

[0019] By adopting the technical solution and using the triangular frame, it is convenient to scrape off the raw materials attached to the inner wall of the conical cylinder for stirring, thereby improving the uniformity of stirring.

[0020] In a preferred example, the utility model can be further configured as follows: the heating system includes a liquid inlet pipe and a liquid outlet pipe connected to the outer circle of the cylindrical reactor, the circular wall of the cylindrical reactor is provided with an annular hollow cavity, the annular hollow cavity is respectively connected to the inner holes of the liquid inlet pipe and the liquid outlet pipe, the outer end of the liquid inlet pipe is connected to the external high-temperature heat-conducting oil tank with pressure through a pipeline, and the outer end of the liquid outlet pipe is connected to the external high-temperature heat-conducting oil tank with pressure through a pipeline.

[0021] By adopting the above technical solution, the external high-temperature heat transfer oil flows from the liquid inlet pipe into the annular hollow cavity, and the high-temperature heat transfer oil in the annular hollow cavity transfers heat to the raw materials of the asphalt additive, thereby reducing the viscosity of the raw materials of the asphalt additive, making it easier for the stirring plate assembly to evenly stir the raw materials.

[0022] In summary, the present invention includes at least one of the following beneficial technical effects:

[0023] 1. The rectangular frame stirring plate is connected to the rotating shaft through an elastic support rod. The elastic support rod drives the rectangular frame stirring plate to move toward the inner wall of the cylindrical reactor, thereby scraping off the raw materials attached to the inner wall of the cylindrical reactor and continuing to stir, thereby enhancing the uniformity of stirring and improving the quality of the product.

[0024] 2. The heating system transfers heat to the raw materials in the cylindrical reactor. The high temperature environment reduces the viscosity of the asphalt additive, enhances the uniformity of stirring, and improves the quality of the asphalt additive. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0026] Figure 1 It is a structural schematic diagram of a preferred embodiment of a reaction kettle for making asphalt additives according to the utility model.

[0027] Figure 2 yes Figure 1 Schematic diagram of the structure of the connection between the rotating shaft, the stirring plate assembly and the driving device.

[0028] In the figure: 10, cylindrical reactor; 2, rotating shaft; 30, stirring plate assembly; 4, driving device; 50, heating system; 6, round hole; 70, rolling stop assembly; 8, longitudinal inclined plate; 9, triangular frame; 11, cylinder; 12, cover plate; 13, conical cylinder; 14, discharge pipe; 15, switch valve; 16, feed pipe; 17, sealing plate;

[0029] 31. Rectangular frame stirring plate; 32. Elastic supporting rod; 321. Support rod; 322. Spring;

[0030] 51. liquid inlet pipe; 52. liquid outlet pipe; 53. annular hollow cavity;

[0031] 71. Fixed plate; 72. Universal ball. DETAILED DESCRIPTION

[0032] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0033] It should be noted that these drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0034] Reference Figures 1-2 , is a reactor for making asphalt additives disclosed in the utility model, comprising: a cylindrical reactor 10, and a stirring rod mechanism is provided on the top of the cylindrical reactor 10.

[0035] The stirring rod mechanism includes a rotating shaft 2 and a plurality of stirring plate assemblies 30. The stirring plate assemblies 30 are connected to the outer circle of the lower end of the rotating shaft 2 in an annular array. The upper end of the rotating shaft 2 is connected to a driving device 4, which is a motor.

[0036] The stirring plate assembly 30 includes a rectangular stirring plate 31 and a plurality of elastic support rods 32. One end of the elastic support rod 32 is inserted into the rectangular stirring plate 31, and the other end is connected to the rotating shaft 2, which is suitable for driving the rectangular stirring plate 31 to move toward the inner wall of the cylindrical reactor 10; the side wall of the rectangular stirring plate 31 is provided with a circular hole 6 having the same number as the elastic support rod 32, and the elastic support rod 32 includes a support rod 321 inserted into the circular hole 6 and a spring 322 sleeved on the outside of the support rod 321, and one end of the spring 322 is connected to the rectangular stirring plate 31. The plate 31 is in abutment connected, and the other end is in abutment connected with the outer circle of the rotating shaft 2. One end of the support rod 321 located in the inner cavity of the rectangular frame stirring plate 31 is threadedly connected with a nut, and an axial gap is provided between the nut and the inner wall of the rectangular frame stirring plate 31. One end of the support rod 321 is connected to the rotating shaft 2; the support rod 321 is located in the circular hole 6 and can slide. Under the elastic force of the spring 322, the rectangular frame stirring plate 31 always has a tendency to move toward the inner wall of the cylindrical reactor 10. The rotating rectangular frame stirring plate 31 can scrape off the raw materials attached to the inner wall of the cylindrical reactor 10.

[0037] A plurality of rolling limit assemblies 70 are connected at intervals to one end of the rectangular frame stirring plate 31 close to the inner wall of the cylindrical reactor 10. The rolling limit assemblies 70 include a fixed plate 71 connected to the rectangular frame stirring plate 31. A universal ball 72 is connected to the fixed plate 71. The universal ball 72 is in rolling contact with the inner wall of the cylindrical reactor 10. A clearance gap is provided between the rectangular frame stirring plate 31 and the inner wall of the cylindrical reactor 10. The clearance gap is 1 to 2 mm, thereby preventing the rectangular frame stirring plate 31 from slidingly connecting with the inner wall of the cylindrical reactor 10 and reducing the noise generated by stirring. The inner cavity of the rectangular frame stirring plate 31 is connected to a longitudinal inclined plate 8. Since the longitudinal inclined plate 8 is connected to the inner cavity of the rectangular frame stirring plate 31, the longitudinal inclined plate 8 stirs a variety of raw materials, thereby enhancing the uniformity of stirring.

[0038] The cylindrical reactor 10 also includes a heating system 50 for transferring heat to the inner cavity of the cylindrical reactor 10. The heating system 50 includes a liquid inlet pipe 51 and a liquid outlet pipe 52 connected to the outer circle of the cylindrical reactor 10. The cylindrical wall of the cylindrical reactor 10 is provided with an annular hollow cavity 53. The annular hollow cavity 53 is connected to the inner holes of the liquid inlet pipe 51 and the liquid outlet pipe 52 respectively. The outer end of the liquid inlet pipe 51 is connected to the high-temperature heat-conducting oil tank with pressure outside through a pipeline, and the outer end of the liquid outlet pipe 52 is connected to the high-temperature heat-conducting oil tank with pressure outside through a pipeline. The external high-temperature heat transfer oil flows from the liquid inlet pipe 51 into the annular hollow cavity 53, and the high-temperature heat transfer oil in the annular hollow cavity 53 transfers heat to the raw material of the asphalt additive, thereby reducing the viscosity of the raw material of the asphalt additive, making it easier for the stirring plate assembly 30 to evenly stir the raw material. After the heat transfer oil that has lost part of the heat flows out from the liquid outlet pipe 52, the heat transfer oil flows into the high-temperature heat transfer oil tank again for heating, that is, the heat transfer oil can continuously transfer heat to the raw material in the cylindrical reactor 10.

[0039] The cylindrical reactor 10 includes a cylinder 11, the upper end of which is connected to a cover plate 12, and the lower end of which is connected to a conical cylinder 13. The lower end opening of the conical cylinder 13 is connected to a discharge pipe 14, and the discharge pipe 14 is provided with a switch valve 15. The cover plate 12 is connected to a feed pipe 16, and the upper end opening of the feed pipe 16 is connected to a sealing plate 17. Through the use of the feed pipe 16, it is convenient to put a variety of raw materials to be mixed into the inner cavity of the cylindrical reactor 10. After the asphalt additive is produced, the switch valve 15 is opened, and the rotating stirring plate assembly 30 scrapes the asphalt additive attached to the inner wall of the cylindrical reactor 10 and flows out from the discharge pipe 14 to the next process, so that the asphalt additive is fully utilized. Through the use of the conical cylinder 13, the asphalt additive in the cylinder 11 can flow smoothly into the discharge pipe 14.

[0040] The lower connecting edge of the rectangular frame stirring plate 31 is connected to a triangular frame 9, and the inclined edge of the triangular frame 9 corresponds to the inner wall of the conical tube 13; through the use of the triangular frame 9, it is convenient to scrape the raw materials attached to the inner wall of the conical tube 13 for stirring, thereby improving the uniformity of stirring.

[0041] The implementation principle of this embodiment is as follows: when in use, various raw materials of asphalt additives are put into the cylindrical reactor 10, and the operating drive device 4 is operated to drive the rotating shaft 2 to rotate, thereby driving the stirring plate assembly 30 to rotate to stir the raw materials. Since the rectangular frame stirring plate 31 is connected to the rotating shaft 2 through the elastic support rod 32, the spring 322 on the elastic support rod 32 drives the rectangular frame stirring plate 31 to move toward the inner wall of the cylindrical reactor 10, thereby scraping off the raw materials attached to the inner wall of the cylindrical reactor 10 and continuing to stir, and the heating system 50 works to transfer heat to the raw materials in the cylindrical reactor 10. The high temperature environment reduces the viscosity of the asphalt additive, enhances the uniformity of stirring, and improves the quality of the asphalt additive.

[0042] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A reactor for making asphalt additives, It is characterized in that include: A cylindrical reaction kettle (10), wherein a stirring rod mechanism is provided on the top of the cylindrical reaction kettle (10); The stirring rod mechanism comprises a rotating shaft (2) and a plurality of stirring plate assemblies (30), wherein the stirring plate assemblies (30) are connected in an annular array to the outer circle of the lower end of the rotating shaft (2), and the upper end of the rotating shaft (2) is connected to a driving device (4); The stirring plate assembly (30) comprises a rectangular stirring plate (31) and a plurality of elastic support rods (32), one end of the elastic support rod (32) is passed through the rectangular stirring plate (31), and the other end is connected to the rotating shaft (2), and is suitable for driving the rectangular stirring plate (31) to move toward the inner wall of the cylindrical reaction kettle (10); It also includes a heating system (50) for transferring heat to the inner cavity of the cylindrical reaction kettle (10).

2. The reactor for producing asphalt additive according to claim 1, It is characterized in that The side wall of the rectangular stirring plate (31) is provided with circular holes (6) of the same number as the elastic support rods (32). The elastic support rods (32) include a support rod (321) inserted into the circular hole (6) and a spring (322) sleeved on the outside of the support rod (321). One end of the spring (322) is in contact with the rectangular stirring plate (31), and the other end is in contact with the outer circle of the rotating shaft (2). One end of the support rod (321) located in the inner cavity of the rectangular stirring plate (31) is threadedly connected with a nut. An axial gap is provided between the nut and the inner wall of the rectangular stirring plate (31). One end of the support rod (321) is connected to the rotating shaft (2).

3. The reactor for producing asphalt additive according to claim 1, It is characterized in that A plurality of rolling stopper assemblies (70) are connected at intervals to one end of the rectangular stirring plate (31) close to the inner wall of the cylindrical reactor (10). The rolling stopper assemblies (70) include a fixed plate (71) connected to the rectangular stirring plate (31). A universal ball (72) is connected to the fixed plate (71). The universal ball (72) is in rolling contact with the inner wall of the cylindrical reactor (10). A clearance gap is provided between the rectangular stirring plate (31) and the inner wall of the cylindrical reactor (10). The clearance gap is 1 to 2 mm.

4. The reactor for producing asphalt additive according to claim 1, It is characterized in that The inner cavity of the rectangular frame stirring plate (31) is connected to a longitudinal inclined plate (8).

5. The reactor for producing asphalt additive according to claim 1, It is characterized in that The cylindrical reactor (10) comprises a cylinder (11), the upper end of the cylinder (11) is connected to a cover plate (12), the lower end is connected to a conical cylinder (13), the lower end opening of the conical cylinder (13) is connected to a discharge pipe (14), a switch valve (15) is provided on the discharge pipe (14), the cover plate (12) is connected to a feed pipe (16), and the upper end opening of the feed pipe (16) is connected to a sealing plate (17).

6. The reactor for producing asphalt additive according to claim 5, It is characterized in that The lower connecting edge of the rectangular frame stirring plate (31) is connected to a triangular frame (9), and the inclined edge of the triangular frame (9) corresponds to the inner wall of the conical cylinder (13).

7. The reactor for producing asphalt additive according to claim 1, It is characterized in that The heating system (50) comprises a liquid inlet pipe (51) and a liquid outlet pipe (52) connected to the outer circle of the cylindrical reactor (10); the cylindrical wall of the cylindrical reactor (10) is provided with an annular hollow cavity (53); the annular hollow cavity (53) is communicated with the inner holes of the liquid inlet pipe (51) and the liquid outlet pipe (52), respectively; the outer end of the liquid inlet pipe (51) is connected to an external high-temperature heat-conducting oil tank with pressure through a pipeline; the outer end of the liquid outlet pipe (52) is connected to an external high-temperature heat-conducting oil tank with pressure through a pipeline.

Images