Novel asphalt mastic preparation device

Abstract

The invention discloses a novel asphalt mastic preparation device, and relates to the technical field of asphalt preparation. The heating assembly comprises an outer spiral coil pipe and an inner spiral coil pipe which are sequentially arranged from outside to inside, an inlet of the outer spiral coil pipe is communicated with the oil inlet in the side wall of the container tank body, an outlet of the outer spiral coil pipe is communicated with an inlet of the inner spiral coil pipe, and an outlet of the inner spiral coil pipe is communicated with the oil outlet in the side wall of the container tank body; the outer spiral coil pipe and the inner spiral coil pipe are used for conveying heat-conducting oil; the inner stirring assembly comprises a stirrer, the stirrer is located at the top of the container tank body, an output shaft of the stirrer extends into the container tank body and is located in the middle of the inner spiral coil pipe, and the output shaft of the stirrer is provided with a plurality of inner stirring blades. By adopting the scheme, the two layers of built-in spiral coil pipes are matched with heat conduction oil to efficiently transfer heat, so that the heating and mixing efficiency of the asphalt mastic is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of asphalt preparation, in particular to a novel asphalt mastic preparation device. BACKGROUND

[0002] The existing asphalt mastic is mainly prepared by mixing matrix asphalt and mineral aggregate at a certain ratio, heating, mixing and stirring, and then outputting the asphalt mastic product. The matrix asphalt generally uses hydraulic asphalt or modified asphalt, and the mineral aggregate mainly uses mineral powder. The mixing ratio is generally matrix asphalt: mineral aggregate = 30-40:60-70.

[0003] At present, the production method of asphalt mastic for the sealing layer of hydraulic asphalt face slab concrete is mainly through stirring in a special container, and using electric heating on the side of the container tank body or diesel fuel combustion heating on the bottom plate of the container tank body. However, since the asphalt mastic is finally a gelled substance, the heating and mixing efficiency is slow by using side electric heating or bottom diesel fuel heating, which seriously affects the construction progress. SUMMARY

[0004] The present application is to solve the problems of the prior art, and aims to provide a novel asphalt mastic preparation device. By using the two-layer spiral coil pipe built-in and cooperating with the heat transfer oil heating medium of the asphalt concrete mixing system for efficient heat transfer, the heating and mixing efficiency of the asphalt mastic is improved.

[0005] The present application is realized by the following technical scheme: A novel asphalt mastic preparation device, comprising: a container tank body; a heating assembly located inside the container tank body, the heating assembly comprising an outer spiral coil pipe and an inner spiral coil pipe arranged in sequence from the outside to the inside, the inlet of the outer spiral coil pipe being in communication with the oil inlet of the side wall of the container tank body, the outlet of the outer spiral coil pipe being in communication with the inlet of the inner spiral coil pipe, and the outlet of the inner spiral coil pipe being in communication with the oil outlet of the side wall of the container tank body; the outer spiral coil pipe and the inner spiral coil pipe being used for conveying heat transfer oil; an inner stirring assembly comprising a stirrer, the stirrer being located at the top of the container tank body, the output shaft of the stirrer extending into the container tank body and being located at the middle part of the inner spiral coil pipe, and the output shaft of the stirrer being provided with a plurality of inner stirring blades.

[0006] Compared to existing technologies that use peripheral electric heating or bottom diesel heating, which suffer from slow heating and mixing efficiency, this invention provides a novel asphalt mastic preparation device. This device utilizes a built-in double-layer spiral coil and a heat-conducting oil heating medium from the asphalt concrete mixing system for efficient heat transfer, thereby improving the heating and mixing efficiency of the asphalt mastic. Specifically, the device includes a container for stirring and heating. The top of the container has an inspection port and a mineral powder addition port, through which an external matrix asphalt pump adds asphalt. An outlet connected to a finished product pump is located on one side of the bottom of the container to discharge the internally mixed finished product. The bottom of the container also includes a metering module for weighing the added asphalt and mineral powder separately to control the mixing ratio. The main components of the container are an outer spiral coil and an inner spiral coil, arranged sequentially from the outside to the inside within the internal chamber. Both are fixed to the bottom of the container. An oil inlet is located on the side wall of the container, connecting to the lower inlet of the outer spiral coil via a channel built into the container shell, thus supplying heat transfer oil to the outer spiral coil. The upper outlet of the outer spiral coil then delivers the heat transfer oil to the upper inlet of the inner spiral coil. Finally, the lower end of the inner spiral coil outputs heated oil to the outlet through an internal channel, achieving circulating heating of the heat transfer oil and facilitating temperature control. Both the outer and inner spiral coils are made of highly thermally conductive materials, and the heat transfer oil is sourced from the asphalt concrete mixing system to save energy. This configuration, with the outer and inner spiral coils heating at different radial positions, allows for rapid heat transfer to the surrounding materials, achieving rapid heating and improving heating efficiency. Additionally, an agitator is located at the top of the container tank. This agitator drives the internal mixing blades to rotate, thus mixing the asphalt and mineral powder rapidly within the inner spiral coil. Both the outer and inner spiral coils are made of metal or rigid heat-conducting materials.

[0007] Further optimization involves an external stirring component. Since the internal stirring assembly only stirs at the center, causing centrifugal motion of the material, some material located on the circumferential sidewalls of the container may not reach the stirring center, resulting in slow mixing and poor uniformity. Therefore, to stir the material on the circumferential sidewalls and feed it into the central stirring area, an external stirring assembly is included. This assembly includes external stirring blades located outside the external spiral coil. The external stirring blades can be turbine blades or auger blades, and their conveying direction is towards the external stirring blades. In this design, external stirring blades are installed on the inner sidewall of the container. These blades are horizontally positioned and can rotate around their own axis under the action of an external drive. The external stirring blades can be auger blades. During rotation, they not only stir the material inside the container but also apply a driving force towards the center, allowing the material to slowly enter the external spiral coil, achieving uniform heating and mixing.

[0008] Further optimization involves adding an intermediate stirring assembly to improve heating efficiency, since the area between the inner and outer spiral coils is the optimal heating zone. This assembly includes a drive unit, first rotating blades, and second rotating blades. The outer spiral coil is rotatably fitted with several first rotating blades along its length, and the inner spiral coil is rotatably fitted with several second rotating blades along its length. The drive unit can drive the first and second rotating blades to rotate. In this design, several first and second rotating blades are rotatably fitted on the walls of the inner and outer spiral coils, respectively. Under the action of the drive unit, the first and second rotating blades rotate around their own axes, i.e., around the wall at that moment. Thus, driven by the drive unit, the rotation of the first and second rotating blades stirs the material inside the inner spiral coil and the material outside the outer spiral coil, causing them to move towards the area between the inner and outer spiral coils. Under the stirring action, they are rapidly heated around the coils, thereby further improving the uniformity and efficiency of temperature heating and mixing.

[0009] Further optimization involves a specific structure for a driving component, in which several driving components are sequentially arranged on the container, each driving component including a rotary motor and a transmission rod; The rotary motor is fixed to the outside of the container body. The output end of the rotary motor is connected to the transmission rod. The transmission rod is eccentrically set inside the container body, passes through the spiral gap on the outer spiral coil and the inner spiral coil in sequence, and is rotatably connected to the inner wall of the other side of the container body. The transmission rod has a first worm section and a second worm section in sequence. The outer spiral coil is also rotatably fitted with a plurality of first worm gears on its tube wall. The first rotating blades and the first worm gears correspond one-to-one. The sidewalls of the first rotating blades are connected to the sidewalls of the corresponding first worm gears through a first connecting rod. The inner spiral coil is also rotatably fitted with a plurality of second turbines on its tube wall. The second rotating blades and the second turbines correspond one-to-one. The sidewalls of the second rotating blades are connected to the sidewalls of the corresponding second turbines through a second connecting rod. The first worm gear and a corresponding second turbine are distributed sequentially along the length of the transmission rod, with the first worm segment meshing with the first worm gear, and the second worm segment meshing with the second turbine. In this design, the pitch of the outer spiral coil and the inner spiral coil are preferably the same, thus leaving sufficient helical clearance for the transmission rod to pass through the outer spiral coil and the inner spiral coil sequentially. The transmission rod can be arranged laterally or slightly inclined, as long as the worm gear and worm can mesh with each other. Furthermore, the transmission rod is eccentrically arranged to avoid the inner stirring blades. The transmission rod has a first worm segment and a second worm segment, and the diameters of the first worm segment and the second worm segment can be selected accordingly. Generally speaking, the diameter of the second worm segment is larger than the diameter of the first worm segment to facilitate the meshing of the second worm segment and the inner turbine. The worm gears on the spiral coil are engaged; on the outer spiral coil, a first worm gear is also provided next to a first rotating blade, and the two are connected by a first connecting rod. In this way, when the first worm section rotates and drives the first worm gear to rotate, the first rotating blade can be driven to rotate synchronously through the fixedly connected first connecting rod; similarly, on the inner spiral coil, a second worm gear is also provided next to a second rotating blade, and the two are connected by a second connecting rod. In this way, when the second worm rotates and drives the first worm gear to rotate, the second rotating blade can be driven to rotate synchronously through the fixedly connected second connecting rod.

[0010] To further optimize the system and provide a stable force transmission structure, a number of first connecting rods are provided along the circumferential direction of the first worm gear, and a gap is left between the rotation path enclosed by the number of first connecting rods and the wall of the outer spiral coil. The second turbine has several second connecting rods along its circumferential direction, and a gap is left between the rotation path enclosed by the connecting rods and the wall of the inner spiral coil. In this design, the connecting rods are arranged circumferentially for more stable force transmission, which facilitates the rotation of the blades; while the gap between the circumferential movement path and the wall of the spiral coil is left to avoid the curved pipeline and provide sufficient rotation space.

[0011] Further optimization involves protecting the spiral coil. The first worm gear, second turbine, first rotating blade, and second rotating blade are all fixedly fitted onto the spiral coil using protective sleeves. The protective sleeve has a groove in the center of its outer side, within which a ball bearing is installed. In this design, a flexible pad can be provided on the protective sleeve, which is then fixedly fitted onto the spiral coil. Furthermore, a groove in the center of the outer side of the protective sleeve accommodates the ball bearing, allowing the first worm gear, second turbine, first rotating blade, and second rotating blade to be fitted onto the ball bearing for free rotation. Sealing devices are installed at all gaps.

[0012] To further optimize the process and reduce driving force, the outer stirring blades and the worm gear rotate synchronously, with the outer stirring blades coaxially sleeved on the transmission rod.

[0013] To further optimize the design, in order to support and fix the outer spiral coil and the inner spiral coil, several support rods are provided on the side walls of both the outer spiral coil and the inner spiral coil. The support rods are connected to the spiral side walls from bottom to top.

[0014] To further optimize the process and form an effective insulation layer to prevent rapid heat loss from the container's interior, the container body includes an outer shell and an inner shell, with aluminum silicate rock wool board filling the space between the outer shell and the inner shell.

[0015] To further optimize the process and ensure precise control of the mixing ratio, a weighing and metering module is also installed at the bottom of the container.

[0016] As a redundancy solution, all exposed components inside the container are coated with polytetrafluoroethylene (PTFE). As a non-stick material, PTFE has excellent anti-adhesion properties, which helps to reduce material adhesion.

[0017] Compared with the prior art, the present invention has the following advantages and beneficial effects: 1. The present invention provides a novel asphalt mastic preparation device. Using this solution, heat is efficiently transferred through a built-in two-layer spiral coil and in conjunction with the heat transfer oil heating medium of the asphalt concrete mixing system, thereby improving the heating and mixing efficiency of asphalt mastic.

[0018] 2. The present invention provides a novel asphalt mastic preparation device. Using this design, the internal stirring blades vertically stir the material in a circumferential direction, causing it to be stirred and centrifugally moved outwards. The external stirring blades horizontally stir the material in a circumferential direction, causing it to be stirred and having a driving force that moves the material inwards. The first and second stirring blades rotate around the walls of the first and second spiral coils, respectively, stirring the material inside the inner spiral coil and the material outside the outer spiral coil, causing them to move towards the inner and outer spiral coils. Under the stirring action, the material is rapidly heated around the coils. Through the rotational stirring in at least three major directions, the turbulence of the internal material is greatly increased, bringing the material closer to the spiral coils while significantly improving the uniformity and efficiency of temperature heating and mixing. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of the present invention and should not be considered as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort. In the drawings: Figure 1 A schematic diagram of the internal stirring assembly structure inside the container tank provided by the present invention; Figure 2 A schematic diagram of the heating assembly structure inside the container provided by the present invention; Figure 3 A schematic diagram of the drive component structure inside the container tank provided by the present invention; Figure 4 A detailed structural diagram of the driving component provided by the present invention; Figure 5 This is a schematic diagram showing the position of a first rotating blade on an external spiral coil provided by the present invention. Figure 6 This is a schematic diagram showing the position of a second rotating blade on an internal spiral coil provided by the present invention. Figure 7 A schematic diagram illustrating the interaction between the drive component, rotating blades, and turbine provided by the present invention; Figure 8 A cross-sectional view between the turbine and the protective sleeve provided for this invention.

[0020] The attached diagram shows the markings and corresponding component names: 1-Container tank, 101-Oil inlet, 102-Oil outlet, 2-Outer spiral coil, 3-Inner spiral coil, 4-Agitator, 401-Inner stirring blade, 5-Outer stirring blade, 6-First rotating blade, 7-Second rotating blade, 8-Rotary motor, 9-Transmission rod, 901-First worm section, 902-Second worm section, 903-First worm wheel, 904-First connecting rod, 905-Second turbine, 906-Second connecting rod, 10-Ball bearing, 12-Protective sleeve, 13-Support rod, 14-Weighing and metering module, 15-Alumina silicate rock wool board, 16-Base asphalt pump, 17-Inspection and maintenance port, 18-Mineral material addition port, 19-Bottom coil, 20-Finished product pump. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this invention are only for explaining this invention and are not intended to limit this invention.

[0022] Example 1: This Example 1 provides a novel asphalt mastic preparation device, such as... Figure 1 and Figure 2 ,include: Container / tank 1; A heating assembly is located inside the container tank 1. The heating assembly includes an outer spiral coil 2 and an inner spiral coil 3 arranged sequentially from the outside to the inside. The inlet of the outer spiral coil 2 is connected to the oil inlet 101 on the side wall of the container tank 1, the outlet of the outer spiral coil 2 is connected to the inlet of the inner spiral coil 3, and the outlet of the inner spiral coil 3 is connected to the oil outlet 102 on the side wall of the container tank 1. The outer spiral coil 2 and the inner spiral coil 3 are used to transport heat transfer oil. An internal stirring assembly includes a stirrer 4 located at the top of the container tank 1. The output shaft of the stirrer 4 extends into the container tank 1 and is located in the middle of the inner spiral coil 3. The output shaft of the stirrer 4 has several internal stirring blades 401.

[0023] Compared to existing technologies that use peripheral electric heating or bottom diesel heating, which suffer from slow heating and mixing efficiency, this invention provides a novel asphalt mastic preparation device. This device utilizes a built-in double-layer spiral coil and a heat-conducting oil heating medium from the asphalt concrete mixing system for efficient heat transfer, thereby improving the heating and mixing efficiency of the asphalt mastic. Specifically, the device includes a container tank 1 for stirring and heating. The top of the container tank 1 has an inspection port 17 and a mineral powder addition port 18. An external matrix asphalt pump 16 can add asphalt through the inspection port 17. The bottom of the container tank 1 has an outlet connected to a finished product pump 20 for discharging the internally mixed finished product. The bottom of the container tank 1 also has a metering module for weighing the added asphalt and mineral powder separately to control the mixing ratio. Mainly, within the internal chamber of the container tank 1, an outer spiral coil 2 and an inner spiral coil 3 are sequentially arranged from the outside to the inside. The lower ends of both are fixed to the bottom of the container tank 1. An oil inlet 101 is also provided on the side wall of the container tank 1, which connects to the lower inlet of the outer spiral coil 2 through a channel built into the shell of the container tank 1, thus outputting heat transfer oil to the outer spiral coil 2. The upper outlet of the outer spiral coil 2 then transports the heat transfer oil to the upper inlet of the inner spiral coil 3. Finally, the lower end of the inner spiral coil 3 outputs heated oil to the oil outlet 102 through an internal channel in the shell, achieving circulating heating of the heat transfer oil and facilitating temperature control. Both the outer spiral coil 2 and the inner spiral coil 3 are made of easily conductive materials, and their heat transfer oil comes from the asphalt concrete mixing system to save energy. With the above configuration, the heating of the outer spiral coil 2 and the inner spiral coil 3 at different radial positions allows for rapid heat transfer to the surrounding materials, achieving rapid heating and improving heating efficiency. In addition, a stirrer 4 is also provided on the top of the container tank 1. The stirrer 4 is used to drive the inner stirring blades 401 to rotate, so as to stir inside the inner spiral coil 3, thereby quickly mixing the asphalt and mineral powder.

[0024] Example 2: This Example 2 is a further optimization based on Example 1, such as... Figures 3-8 As shown, a solution is provided to increase internal material turbulence and improve heating and mixing efficiency.

[0025] In this embodiment 2, since the internal stirring component only stirs at the center, it plays a stirring role and causes the material to undergo centrifugal motion. However, at this time, some material located on the circumferential sidewall of the container tank 1 may not be able to enter the stirring center, resulting in a slow mixing rate and poor mixing uniformity. Therefore, in order to stir the material on the circumferential sidewall of the container tank 1 and send it into the central stirring area, an external stirring component is also included. This component includes an external stirring blade 5, which is located outside the external spiral coil 2. The external stirring blade 5 is a turbine blade or an auger blade, and its conveying direction is towards the external stirring blade 5. In this solution, an external stirring blade 5 is provided on the inner sidewall of the container tank 1. The external stirring blade 5 is placed horizontally and can rotate around its own axis under the action of an external driving component. The external stirring blade 5 can be an auger blade. During the rotation, it can not only stir the material on the inner side of the container tank 1, but also apply a driving force to the material in the center direction, so that the material can slowly enter the external spiral coil 2, achieving uniform temperature heating and mixing.

[0026] In this embodiment 2, since the area between the inner spiral coil 3 and the outer spiral coil 2 is the optimal heating area, an intermediate stirring assembly is also included to improve heating efficiency. This assembly includes a driving component, a first rotating blade 6, and a second rotating blade 7. The outer spiral coil 2 is sequentially fitted with a plurality of first rotating blades 6 along its own length direction, and the inner spiral coil 3 is sequentially fitted with a plurality of second rotating blades 7 along its own length direction. The driving component can drive the first rotating blades 6 and the second rotating blades 7 to rotate respectively. In this design, several first rotating blades 6 and second rotating blades 7 are respectively rotatably mounted on the walls of the inner spiral coil 3 and the outer spiral coil 2. Under the action of the driving component, the first rotating blades 6 and the second rotating blades 7 can rotate around their own axes, that is, around the current pipe wall. Thus, under the drive of the driving component, the rotation of the first rotating blades 6 and the second rotating blades 7 can stir the material inside the inner spiral coil 3 and the material outside the outer spiral coil 2, causing them to move towards the inner spiral coil 3 and the outer spiral coil 2. Under the stirring action, they can be rapidly heated around the coil, thereby further improving the uniformity and efficiency of temperature heating and mixing.

[0027] In this embodiment 2, as a specific structure of a driving component, a plurality of driving components are sequentially provided on the container tank, and the driving component includes a rotary motor 8 and a transmission rod 9; The rotary motor is fixed to the outside of the container tank 1. The output end of the rotary motor 8 is connected to the transmission rod 9. The transmission rod 9 is eccentrically set inside the container tank 1, passes through the spiral gap on the outer spiral coil 2 and the inner spiral coil 3 in sequence, and is rotatably connected to the inner wall of the other side of the container tank 1. The transmission rod 9 is equipped with a first worm section 901 and a second worm section 902 in sequence. The outer spiral coil 2 is also rotatably fitted with a plurality of first worm gears 903, and the first rotating blade 6 and the first worm gear 903 correspond one-to-one. The sidewall of the first rotating blade 6 is connected to the sidewall of the corresponding first worm gear 903 through the first connecting rod 904. The inner spiral coil 3 is also rotatably fitted with a plurality of second turbines 905, and the second rotating blade 7 and the second turbine 905 correspond one-to-one. The sidewall of the second rotating blade 7 is connected to the sidewall of the corresponding second turbine 905 through the second connecting rod 906. The first worm gear 903 and a corresponding second turbine 905 are sequentially distributed along the length of the transmission rod 9, with the first worm segment 901 meshing with the first worm gear 903, and the second worm segment 902 meshing with the second turbine 905. In this design, the pitch of the outer spiral coil 2 and the inner spiral coil 3 is preferably the same, thus leaving sufficient spiral clearance for the transmission rod 9 to pass through the outer spiral coil 2 and the inner spiral coil 3 sequentially. The transmission rod 9 can be arranged laterally or slightly inclined, as long as the worm gears and worms can mesh with each other. Furthermore, the transmission rod 9 is eccentrically arranged to avoid the inner stirring blade 401. The transmission rod 9 is equipped with a first worm segment 901 and a second worm segment 902, respectively. The diameters of the first worm segment 901 and the second worm segment 902 can each be selected. Generally speaking, the diameter of the second worm segment 902 is larger than the diameter of the first worm segment 901, so that the second worm segment 902 and the inner spiral coil 3 can mesh. Worm gear meshing; on the outer spiral coil 2, a first worm gear 903 is also provided next to a first rotating blade 6, and the two are connected by a first connecting rod 904. In this way, when the first worm section 901 rotates and drives the first worm gear 903 to rotate, the first rotating blade 6 can be driven to rotate synchronously through the fixedly connected first connecting rod 904. Similarly, on the inner spiral coil 3, a second worm gear 905 is also provided next to a second rotating blade 7, and the two are connected by a second connecting rod 906. In this way, when the second worm rotates and drives the first worm gear 903 to rotate, the second rotating blade 7 can be driven to rotate synchronously through the fixedly connected second connecting rod 906. The connecting rod has sufficient rigidity.

[0028] In this embodiment 2, in order to provide a stable force transmission structure, a plurality of first connecting rods 904 are circumferentially arranged along the first worm gear 903, and a gap is left between the rotation path enclosed by the plurality of first connecting rods 904 and the wall of the outer spiral coil 2. The second turbine 905 has several second connecting rods 906 circumferentially arranged, and a gap is left between the rotation path enclosed by the connecting rods 906 and the wall of the inner spiral coil 3. In this design, several connecting rods are arranged circumferentially to transmit force more stably and facilitate the rotation of the blades; while the gap is left between the circumferential movement path and the wall of the spiral coil to avoid the curved pipeline and leave sufficient rotation space.

[0029] In this embodiment 2, to protect the spiral coil, the first worm gear 903, the second turbine 905, the first rotating blade 6, and the second rotating blade 7 are all fixedly sleeved onto the spiral coil by a protective sleeve 12. The protective sleeve 12 has a groove in the middle of its outer side, and a ball bearing 10 is installed in the groove. In this design, a flexible pad can be provided on the protective sleeve 12, and the protective sleeve 12 is fixedly sleeved onto the spiral coil. Secondly, a groove is provided in the middle of the outer side of the protective sleeve 12 to accommodate the ball bearing 10. In this way, the first worm gear 903, the second turbine 905, the first rotating blade 6, and the second rotating blade 7 can be sleeved on the ball bearing 10 to achieve free rotation. Sealing devices are provided at the gap positions.

[0030] In this embodiment 2, in order to reduce the driving force and make the outer stirring blade 5 and the worm gear rotate synchronously, the outer stirring blade 5 is coaxially sleeved on the transmission rod 9.

[0031] In this embodiment 2, in order to support and fix the outer spiral coil 2 and the inner spiral coil 3, a number of support rods 13 are provided on the side walls of both the outer spiral coil 2 and the inner spiral coil 3. The support rods 13 are connected to the spiral side walls from bottom to top.

[0032] In this embodiment 2, as Figure 1 As shown, in order to form an effective insulation layer and prevent the internal temperature of the container from dissipating rapidly, the container body 1 includes an outer shell and an inner shell, and an aluminum silicate rock wool board 15 is filled between the outer shell and the inner shell.

[0033] In this embodiment 2, as Figure 1 As shown, in order to accurately control the mixing ratio, a weighing and metering module 14 is also provided at the bottom of the container tank 1.

[0034] In this embodiment 2, all exposed parts inside the container 1 are coated with polytetrafluoroethylene (PTFE). As a non-stick material, PTFE has excellent anti-adhesion properties, which helps to reduce the adhesion of materials.

[0035] How this solution works: In the specific operation of this scheme, the heat transfer oil valve is opened, and the container tank 1 is heated first. The temperature of the heat transfer oil is uniformly controlled by the asphalt system; and the weighing and metering modulus is reset to zero.

[0036] Then, all stirring components are activated: the stirrer 4 is started to drive the inner stirring blades 401 to rotate, which can stir the internal materials and move them centrifugally outward; the rotary motor 8 is started, which drives the transmission rod 9 to rotate, and the outer stirring blades 5 on the transmission rod 9 are driven to rotate, which can stir the external materials and have a driving force to move the materials inward; at the same time, the first worm section 901 drives the first worm wheel 903 to rotate, and the first worm wheel 903 drives the first rotating blade 6 to rotate through the first connecting rod 904; while the second worm section 902 drives the second worm wheel to rotate, and the second worm wheel drives the second rotating blade 7 to rotate through the second connecting rod 906, which can stir the materials located inside the inner spiral coil 3 and the materials located outside the outer spiral coil 2, so that they move towards the inner spiral coil 3 and the outer spiral coil 2, and under the action of stirring, they can be rapidly heated around the coil. By rotating and stirring in at least three major directions, most of the material can be brought closer to the inner spiral coil 3 and the outer spiral coil 2, improving heating efficiency and greatly increasing the turbulence direction of the internal material. While bringing the material closer to the spiral coil, the uniformity and efficiency of temperature heating and mixing are greatly improved.

[0037] Then start the base asphalt pump 16 and inject asphalt into the asphalt injection port; after reaching the appropriate weight, stop the injection of base asphalt.

[0038] Start the ore powder screw conveyor and inject the appropriate amount of ore powder from the ore addition port 18 according to the formula; The mixed asphalt mastic is observed and tested through inspection port 17. After being stirred evenly, the finished product pump 20 (frequency conversion) is started to extract the finished product for use.

[0039] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A novel asphalt mastic preparation device, characterized in that, include: Container (1); A heating assembly is located inside the container tank (1). The heating assembly includes an outer spiral coil (2) and an inner spiral coil (3) arranged sequentially from the outside to the inside. The inlet of the outer spiral coil (2) is connected to the oil inlet (101) on the side wall of the container tank (1). The outlet of the outer spiral coil (2) is connected to the inlet of the inner spiral coil (3). The outlet of the inner spiral coil (3) is connected to the oil outlet (102) on the side wall of the container tank (1). The outer spiral coil (2) and the inner spiral coil (3) are used to transport heat transfer oil. An internal stirring assembly includes a stirrer (4) located at the top of the container tank (1), the output shaft of the stirrer (4) extending into the container tank (1) and located in the middle of the inner spiral coil (3), and the output shaft of the stirrer (4) having a plurality of internal stirring blades (401).

2. The novel asphalt mastic preparation device according to claim 1, characterized in that, It also includes an external stirring assembly, which includes an external stirring blade (5), the external stirring blade (5) being located outside the external spiral coil (2), the external stirring blade (5) being a turbine blade or an auger blade, and its conveying direction being toward the external stirring blade (5).

3. The novel asphalt mastic preparation device according to claim 2, characterized in that, It also includes an intermediate stirring assembly, which includes a driving component, a first rotating blade (6) and a second rotating blade (7). The outer spiral coil (2) is sequentially fitted with a number of first rotating blades (6) along its own length direction. The inner spiral coil (3) is sequentially fitted with a number of second rotating blades (7) along its own length direction. The driving component can drive the first rotating blade (6) and the second rotating blade (7) to rotate respectively.

4. The novel asphalt mastic preparation device according to claim 3, characterized in that, A number of driving components are sequentially provided on the container body (1), and the driving components include a rotary motor (8) and a transmission rod (9). The rotary motor (8) is fixed to the outside of the container tank (1). The output end of the rotary motor (8) is connected to the transmission rod (9). The transmission rod (9) is eccentrically set inside the container tank (1), passes through the spiral gap on the outer spiral coil (2) and the inner spiral coil (3) in sequence, and is rotatably connected to the inner wall of the other side of the container tank (1). The transmission rod (9) is equipped with a first worm section (901) and a second worm section (902) in sequence. The outer spiral coil (2) is also rotatably fitted with a plurality of first worm gears (903), the first rotating blade (6) and the first worm gear (903) are in one-to-one correspondence, and the side wall of the first rotating blade (6) is connected to the side wall of the corresponding first worm gear (903) through the first connecting rod (904); the inner spiral coil (3) is also rotatably fitted with a plurality of second turbines (905), the second rotating blade (7) and the second turbine (905) are in one-to-one correspondence, and the side wall of the second rotating blade (7) is connected to the side wall of the corresponding second turbine (905) through the second connecting rod (906); The first worm gear (903) and the corresponding second turbine (905) are distributed sequentially along the length of the transmission rod (9), and the first worm segment (901) meshes with the first worm gear (903), and the second worm segment (902) meshes with the second turbine (905).

5. The novel asphalt mastic preparation device according to claim 4, characterized in that, A plurality of first connecting rods (904) are circumferentially arranged along the first worm gear (903), and a gap is left between the rotation path enclosed by the plurality of first connecting rods (904) and the wall of the outer spiral coil (2); Along the second turbine (905), there are several second connecting rods (906) in the circumferential direction, and there is a gap between the rotation path enclosed by the several second connecting rods (906) and the wall of the inner spiral coil (3).

6. The novel asphalt mastic preparation device according to claim 4, characterized in that, The first worm gear (903), the second turbine (905), the first rotating blade (6) and the second rotating blade (7) are all fixedly sleeved on the spiral coil by a protective sleeve (12). The outer middle part of the protective sleeve (12) has a groove, and a ball bearing (10) is provided in the groove.

7. The novel asphalt mastic preparation device according to claim 4, characterized in that, The outer stirring blade (5) is coaxially sleeved on the transmission rod (9).

8. The novel asphalt mastic preparation device according to claim 1, characterized in that, The outer spiral coil (2) and the inner spiral coil (3) are each provided with a number of support rods (13), which are connected to the spiral sidewalls from bottom to top.

9. The novel asphalt mastic preparation device according to claim 1, characterized in that, The container (1) includes an outer shell and an inner shell, and the space between the outer shell and the inner shell is filled with aluminum silicate rock wool board (15).

10. A novel asphalt mastic preparation device according to claim 1, characterized in that, The bottom of the container (1) is also equipped with a weighing and metering module (14).

Images