Multi-angle high-efficiency asphalt mixer

Abstract

The application discloses a multi-angle high-efficiency asphalt mixer, belonging to the technical field of asphalt mixing, which comprises a stirring barrel body, supporting legs symmetrically arranged at the lower end of the stirring barrel body, and a handle rotatably arranged at the front and back sides of the stirring barrel body, an installation cavity arranged at the top end of the stirring barrel body, an upper cover plate fixed at the top end of the installation cavity, a discharging pipe fixed at the bottom end of the stirring barrel body, a discharging box arranged at the right upper end of the upper cover plate, a power motor arranged at the middle of the upper cover plate, and a first reciprocating screw rod fixed at the lower end of the power motor. The multi-angle high-efficiency asphalt mixer is characterized in that the first stirring frame and the second stirring frame are arranged to rotate in different directions, the first stirring frame is arranged to rotate while driving the second stirring shaft to rotate and self-rotate in the other direction through the transmission structure, and the second stirring shaft is arranged to horizontally reciprocate during self-rotation, so that the asphalt in the stirring barrel body is stirred from multiple directions, and the stirring efficiency and the stirring uniformity of the asphalt are improved.

Description

Technical Field

[0001] This invention relates to the field of asphalt mixing technology, specifically to a multi-angle high-efficiency asphalt mixer. Background Technology

[0002] Asphalt is a dark brown, complex mixture composed of hydrocarbons of varying molecular weights and their non-metallic derivatives. It is a high-viscosity organic liquid, appearing liquid with a black surface, and is soluble in carbon disulfide. Asphalt is a waterproof, moisture-proof, and corrosion-resistant organic cementing material. It can be mainly classified into three types: coal tar pitch, petroleum asphalt, and natural asphalt.

[0003] However, existing multi-angle high-efficiency asphalt mixers still have some problems in use:

[0004] An existing Chinese patent publication number CN201721154520.3 describes an asphalt storage tank mixing device, which includes an asphalt storage tank, a motor mounted on the top of the asphalt storage tank, and a mixing shaft connected to the output shaft of the motor. The mixing shaft is evenly provided with at least four sets of mixing blades from top to bottom, and the height difference between adjacent mixing blades is equal.

[0005] An existing asphalt mixer for preventing asphalt from solidifying during paving, such as the Chinese Patent Publication No. CN213013786U, includes an asphalt mixer body, a drive motor, and a servo motor. The top of the asphalt mixer body is equipped with an asphalt inlet, and the bottom of the asphalt mixer body is fixedly connected to a support column. The interior of the asphalt mixer body is equipped with a lifting support column, and the interior of the lifting support column is equipped with a threaded rod. The surface of the threaded rod is equipped with an internal threaded slider, and the side of the internal threaded slider is equipped with a scraper.

[0006] 1. Most existing asphalt mixing devices have limited mixing angles or ranges, and can only provide mixing in one direction or angle. Their mixing effect is poor and their mixing efficiency is low. The horizontal mixing rods can easily lead to insufficient mixing between the upper and lower layers, which in turn affects the performance of subsequent asphalt paving and other operations.

[0007] 2. Asphalt produces waste gas during heating and mixing, but existing equipment cannot treat the waste gas and it is directly discharged. This not only has a pungent smell that affects the normal operation of personnel, but also has a certain impact on the environment.

[0008] 3. Asphalt is prone to solidification at low temperatures, and existing mixing equipment fails to provide uniform and effective heating, resulting in greater resistance during mixing, higher motor power consumption, and relatively poor mixing performance.

[0009] To address the aforementioned issues, an innovative design was implemented based on the existing multi-angle high-efficiency asphalt mixer. Summary of the Invention

[0010] The purpose of this invention is to provide a multi-angle, high-efficiency asphalt mixer to solve the problems mentioned in the background art, such as poor mixing uniformity and low mixing efficiency of existing asphalt mixing equipment, and the inability to treat the waste gas generated during asphalt mixing and heating.

[0011] To achieve the above objectives, the present invention provides the following technical solution: a multi-angle high-efficiency asphalt mixer, comprising a mixing tank:

[0012] The mixing tank is symmetrically equipped with support legs at the lower end, and handles are rotatably installed on the front and rear sides of the mixing tank. The top of the mixing tank is provided with an installation cavity, and a top cover plate is fixed to the top of the installation cavity. A discharge pipe is fixed to the bottom of the mixing tank. A discharge box is installed on the upper right side of the top cover plate, and a power motor is installed in the middle of the top cover plate. A first reciprocating screw is fixed to the lower end of the power motor.

[0013] The mixing tank has an internal compartment, and a heating tube is installed inside the compartment. The heating tube extends to the installation cavity at both ends. A sealing tube is fixed inside the installation cavity, and a piston is installed inside the sealing tube. A combustion box is installed at the front end of the installation cavity, and a burner is fixed inside the combustion box. An outlet pipe and an inlet pipe pass through the upper left and right sides of the combustion box, respectively. An igniter is installed on the right side of the burner.

[0014] The mixing tank is provided with a first mixing frame inside, and a second mixing frame is provided inside the first mixing frame.

[0015] Preferably, a liquid storage tank is provided on the rear side of the installation cavity, and an array of heating wires is arranged inside the liquid storage tank in an equidistant array. The heating tube is spirally arranged inside the compartment, and the upper rear end of the heating tube is electrically connected to the liquid storage tank.

[0016] By adopting the above technical solution, the spiral heating pipe can facilitate the circulation of heating liquid inside, thereby heating and melting the asphalt inside the mixing tank.

[0017] Preferably, the lower end of the first reciprocating screw is embedded inside the sealing tube, and the first reciprocating screw is rotatably connected to the sealing tube. The first reciprocating screw is threadedly connected to the piston, and the piston is slidably connected to the inner wall of the sealing tube. A liquid inlet check valve is conductively connected to the lower left end of the sealing tube, and the liquid inlet check valve is conductively connected to the liquid storage tank. A liquid outlet check valve is conductively connected to the lower right end of the sealing tube, and the end of the liquid outlet check valve is conductively connected to the liquid inlet pipe.

[0018] By adopting the above technical solution, the cooperation between the piston and the sealing tube can provide power for the flow of heating liquid inside the storage tank and the heating tube. The piston is driven to move up and down inside the sealing tube by the first reciprocating screw, so that the liquid inside the storage tank is drawn into the sealing tube by the inlet check valve and discharged by the outlet check valve.

[0019] Preferably, a heat exchange tube is installed inside the combustion chamber, and the left and right ends of the heat exchange tube are respectively connected to the liquid outlet pipe and the liquid inlet pipe. The heat exchange tube is designed in a spiral loop. A solenoid valve is connected to the left end of the burner, and an air inlet pipe is connected to the left side of the solenoid valve. The lower end of the air inlet pipe extends into the interior of the stirring tank.

[0020] By adopting the above technical solution, by installing a burner and an igniter inside the combustion chamber, the asphalt exhaust gas flowing after being controlled by the air inlet pipe and solenoid valve can be combusted to remove some harmful substances inside. Furthermore, the heat generated by combustion can be absorbed through the heat exchange tube, thereby heating the heating tube and the heating liquid inside the storage tank, which facilitates the recovery and utilization of heat energy.

[0021] Preferably, the right end of the combustion chamber is connected to an exhaust pipe, and the right side of the exhaust pipe extends to the outside of the mounting cavity. A filter is fixed to the outside of the right side of the mounting cavity, and the end of the exhaust pipe is connected to the filter. An exhaust valve is connected to the rear end of the filter, and the end of the liquid outlet pipe is connected to the front end of the heating tube.

[0022] By adopting the above technical solution, the exhaust gas after combustion can be further purified by connecting the filter to the exhaust pipe, so as to ensure that the control of the discharge will not have an impact on the environment.

[0023] Preferably, the lower end of the air intake pipe is fitted with an external toothed ring, and the upper end of the external toothed ring is rotatably connected to the air intake pipe. The bottom end of the air intake pipe is provided with an axial flow fan blade, and the axial flow fan blade is fixedly connected to the inner wall of the external toothed ring. The lower end of the first reciprocating screw extends into the interior of the mixing tank, and the lower end of the first reciprocating screw is fixed with a first gear, and the first gear meshes with the external toothed ring.

[0024] Using the above technical solution, the first reciprocating screw can drive the first gear to rotate, and the first gear can drive the external gear ring and axial flow fan blades to rotate synchronously, thereby continuously conveying the exhaust gas generated by heating and stirring the asphalt inside the mixing tank to the air inlet pipe, and then to the combustion chamber for treatment.

[0025] Preferably, the bottom end of the first reciprocating screw is fixedly connected to the first stirring frame, and both the first and second stirring frames are designed with equal-sided frames. The second reciprocating screw is fixed to the inner wall of the right side of the first stirring frame, and the second reciprocating screw passes through the second stirring frame. The left end of the second reciprocating screw is threadedly connected to the second stirring frame. The stirring shaft is fixed to the inner wall of the second stirring frame, and the stirring shaft is distributed in an equidistant array.

[0026] By adopting the above technical solution, the connection between the first reciprocating screw and the first mixing frame can drive the first and second mixing frames to rotate synchronously when the screw rotates, thereby completing the mixing process of asphalt. The second mixing frame cooperates with the second reciprocating screw, and can simultaneously exhibit horizontal reciprocating motion when it rotates around the second reciprocating screw. With the cooperation of multiple sets of mixing shafts, the mixing efficiency can be further improved.

[0027] Preferably, a transmission sleeve extends through the left side of the second stirring frame, and a transmission rod is slidably connected inside the transmission sleeve. The transmission rod has a square structure design, and the left side of the transmission rod extends into the interior of the first stirring frame, and the left side of the transmission rod is rotatably connected to the first stirring frame.

[0028] By adopting the above technical solution, the stability of the second stirring frame can be improved through the cooperation between the transmission sleeve and the transmission rod, while ensuring its stability during horizontal movement. Furthermore, when the transmission rod rotates, it can drive the second stirring frame to rotate synchronously using the transmission sleeve.

[0029] Preferably, a first bevel gear is fixed to the left end of the transmission rod, a transmission shaft is rotatably connected inside the left side of the first stirring frame, a second bevel gear is fixed to the upper end of the transmission shaft, and the upper end of the second bevel gear meshes with the first bevel gear. A second gear is fixed to the bottom end of the transmission shaft, and a transmission gear ring is fixed to the bottom end inside the stirring tank, and the second gear meshes with the transmission gear ring.

[0030] By adopting the above technical solution, through the meshing of the transmission gear ring and the second gear, the second gear rotates around the center of the first stirring shaft when the first stirring frame rotates. The transmission gear ring drives the second gear to rotate synchronously, and drives the transmission shaft and the second bevel gear to rotate synchronously. The second bevel gear drives the transmission rod to rotate through the first bevel gear, thereby providing rotational power for the rotation of the second stirring frame.

[0031] Preferably, the lower end of the first stirring frame is fixed with an auger shaft, and the lower end of the auger shaft extends into the inside of the feeding pipe, and the size of the auger shaft is adapted to the inner wall of the feeding pipe.

[0032] By adopting the above technical solution, the auger shaft can rotate with the first stirring frame. When the first stirring frame rotates in the opposite direction, it can cooperate with the feeding pipe to feed the material quantitatively and at a uniform speed, and can avoid the situation of material blockage.

[0033] Compared with the prior art, the beneficial effects of the present invention are: the multi-angle high-efficiency asphalt mixer, through the structure of a first mixing frame and a second mixing frame rotating in different directions, can drive the second mixing shaft to rotate and make it rotate in another direction while the first mixing frame rotates, and can move horizontally back and forth during the rotation process, so asphalt inside the mixing tank is stirred from multiple directions, thereby improving the stirring efficiency and the uniformity of asphalt mixing.

[0034] 1. Through the piston structure, the power motor provides power to the mixing structure and drives the piston to reciprocate inside the sealed tube, thereby providing power for the liquid flow inside the heating tube, thus ensuring the temperature uniformity inside the mixing tank, improving the melting uniformity of asphalt, and indirectly improving the mixing effect.

[0035] 2. By setting up an asphalt exhaust gas collection structure and an exhaust gas combustion structure, the exhaust gas generated during asphalt heating and stirring can be combusted to treat some of the harmful substances inside. The oil particles and other substances inside can be directly burned, and the heat energy from the exhaust gas combustion treatment can be recovered and used to heat the liquid inside the heating tube. The exhaust gas after combustion can be further combusted to remove harmful substances, thereby improving the environmental friendliness of the equipment. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the left side view of the present invention;

[0037] Figure 2 This is a schematic diagram of the right-side view of the present invention;

[0038] Figure 3 This is a schematic cross-sectional view of the mixing tank body of the present invention;

[0039] Figure 4 This is a schematic diagram of the structure of the first stirring frame and the second stirring frame of the present invention;

[0040] Figure 5 This is a schematic diagram of the cross-sectional structure of the mounting cavity of the present invention;

[0041] Figure 6 This is a schematic cross-sectional view of the combustion chamber of the present invention;

[0042] Figure 7 This is a schematic diagram of the burner and combustion chamber structure of the present invention;

[0043] Figure 8 This is a schematic diagram of the second stirring frame and stirring shaft structure of the present invention;

[0044] Figure 9 This is a schematic cross-sectional view of the sealing tube structure of the present invention;

[0045] Figure 10 For the present invention Figure 4 Enlarged structural diagram at point A in the middle.

[0046] In the diagram: 1. Mixing tank; 2. Support leg; 3. Handle; 4. Mounting cavity; 5. Top cover; 6. Feed box; 7. Power motor; 8. Compartment; 9. Heating tube; 10. Liquid storage tank; 11. Heating wire; 12. Sealing tube; 13. Piston; 14. First reciprocating screw; 15. Inlet check valve; 16. Outlet check valve; 17. Combustion chamber; 18. Burner; 19. Ignition device; 20. Solenoid valve; 21. Air inlet pipe; 22. Heat exchanger tube; 23. Outlet... 24. Liquid inlet pipe; 25. Air outlet pipe; 26. Filter; 27. Air outlet valve; 28. Axial flow fan blade; 29. ​​External gear ring; 30. First gear; 31. First stirring frame; 32. Screw shaft; 33. Second stirring frame; 34. Stirring shaft; 35. Second reciprocating screw; 36. Transmission rod; 37. Transmission sleeve; 38. First bevel gear; 39. Transmission shaft; 40. Second bevel gear; 41. Second gear; 42. Transmission gear ring; 43. Feed pipe. Detailed Implementation

[0047] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0048] Please see Figure 1-10 This invention provides a technical solution: a multi-angle high-efficiency asphalt mixer, comprising a mixing drum 1, with support legs 2 symmetrically installed at the lower end of the mixing drum 1, and handles 3 rotatably installed on the front and rear sides of the mixing drum 1. A mounting cavity 4 is provided at the top of the mixing drum 1, and an upper cover plate 5 is fixed to the top of the mounting cavity 4. A discharge pipe 43 is fixed to the bottom of the mixing drum 1. A discharge box 6 is installed at the upper right side of the upper cover plate 5, and a power motor 7 is installed in the middle of the upper cover plate 5. A first reciprocating screw 1 is fixed to the lower end of the power motor 7. 4; The bottom end of the first reciprocating screw 14 is fixedly connected to the first mixing frame 31, and both the first mixing frame 31 and the second mixing frame 33 are equilateral frame designs; The mixing tank 1 is supported by multiple sets of support legs 2, and the feeding box 6 that passes through the mounting cavity 4 can be used to feed materials into the mixing tank 1. During operation, the first reciprocating screw 14 is driven to rotate by the power motor 7, and the first reciprocating screw 14 can drive the first mixing frame 31 and the second mixing frame 33 to rotate synchronously, thereby mixing the asphalt inside the mixing tank 1.

[0049] A first stirring frame 31 is provided inside the stirring tank body 1, and a second stirring frame 33 is provided inside the first stirring frame 31. A second reciprocating screw 35 is fixed to the inner wall of the right side of the first stirring frame 31, and the second reciprocating screw 35 passes through the second stirring frame 33. The left end of the second reciprocating screw 35 is threadedly connected to the second stirring frame 33. A stirring shaft 34 is fixed to the inner wall of the second stirring frame 33, and the stirring shafts 34 are distributed in an equidistant array. A transmission sleeve 37 passes through the left side of the second stirring frame 33, and a transmission rod 36 is slidably connected inside the transmission sleeve 37. The moving rod 36 has a square structure design. The left side of the transmission rod 36 extends into the interior of the first stirring frame 31, and the left side of the transmission rod 36 is rotatably connected to the first stirring frame 31. A first bevel gear 38 is fixed to the left end of the transmission rod 36. A transmission shaft 39 is rotatably connected inside the left side of the first stirring frame 31, and a second bevel gear 40 is fixed to the upper end of the transmission shaft 39. The upper end of the second bevel gear 40 meshes with the first bevel gear 38. A second gear 41 is fixed to the bottom end of the transmission shaft 39. A transmission gear ring 42 is fixed to the bottom end inside the stirring tank 1, and the second gear 41... 1. Engages with the transmission gear ring 42; the lower end of the first stirring frame 31 is fixed with an auger shaft 32, and the lower end of the auger shaft 32 extends into the inside of the feed pipe 43, and the auger shaft 32 is adapted to the inner wall size of the feed pipe 43; through the cooperation between the first gear 41 and the transmission gear ring 42, the first stirring frame 31 drives the transmission shaft 39 and the second gear 41 to rotate, while the transmission gear ring 42 drives the second gear 41 to rotate simultaneously, and the transmission shaft 39 drives the second bevel gear 40 to rotate, and the second bevel gear 40 drives the transmission rod through the first bevel gear 38. The first mixing frame 31 and the second mixing frame 33 rotate synchronously, and with the cooperation of the transmission rod 36 and the transmission sleeve 37, the second mixing frame 33 rotates around the transmission sleeve 37 as the axis. When the second mixing frame 33 rotates, with the cooperation of the second reciprocating screw 35, the second mixing frame 33 and the mixing shaft 34 can move horizontally back and forth, which further improves the mixing efficiency. Since the first mixing frame 31 and the second mixing frame 33 can rotate in different directions and angles, the mixing range is wide. When the second mixing frame 33 rotates, it can turn the asphalt inside the mixing tank 1 up and down, which improves the uniformity of mixing.

[0050] A combustion chamber 17 is located at the front end of the mounting cavity 4, and a burner 18 is fixed inside the combustion chamber 17. An outlet pipe 23 and an inlet pipe 24 pass through the upper left and right sides of the combustion chamber 17, respectively. An igniter 19 is installed on the right side of the burner 18. A heat exchange tube 22 is installed inside the combustion chamber 17, and its left and right ends are connected to the outlet pipe 23 and the inlet pipe 24, respectively. The heat exchange tube 22 has a spiral design. A solenoid valve 20 is connected to the left side of the burner 18. A side-connected air inlet pipe 21 extends into the interior of the mixing tank 1; a side-connected air outlet pipe 25 extends to the outside of the mounting cavity 4, a filter 26 is fixed to the outside of the mounting cavity 4, the end of the air outlet pipe 25 is connected to the filter 26, and an air outlet valve 27 is connected to the rear end of the filter 26; the end of the liquid outlet pipe 23 is connected to the front end of the heating tube 9; an external toothed ring 29 is fitted onto the lower end of the air inlet pipe 21, and the external toothed ring 29... The end is rotatably connected to the air inlet pipe 21. The bottom end of the air inlet pipe 21 is provided with an axial flow fan blade 28, and the axial flow fan blade 28 is fixedly connected to the inner wall of the outer gear ring 29. The lower end of the first reciprocating screw 14 extends into the interior of the mixing tank 1, and the lower end of the first reciprocating screw 14 is fixed with a first gear 30, which meshes with the outer gear ring 29. When the first reciprocating screw 14 rotates, it can synchronously drive the first gear 30 to rotate, and the first gear 30 drives the outer gear ring 29 and the axial flow fan blade 28 to rotate synchronously. This can transport the exhaust gas generated by heating and stirring the asphalt inside the mixing tank 1 into the air inlet pipe 21, and then to the burner 18 through the solenoid valve 20. Since the asphalt exhaust gas contains oil particles that can be burned, the igniter 19 controls the combustion of the exhaust gas to remove some of the harmful substances inside, and the heat energy generated by the combustion can be recovered and utilized. At the same time, after the exhaust gas is treated by combustion, it is transported to the filter 26 through the exhaust pipe 25 for further filtration, ensuring that the discharged exhaust gas will not pollute the environment and improving environmental protection.

[0051] The mixing tank 1 has an internal compartment 8, and a heating tube 9 is installed inside the compartment 8. Both ends of the heating tube 9 extend into the mounting cavity 4. A sealing tube 12 is fixed inside the mounting cavity 4, and a piston 13 is installed inside the sealing tube 12. A liquid storage tank 10 is located at the rear of the mounting cavity 4, and heating wires 11 are arranged in an array inside the liquid storage tank 10 at equal intervals. The heating tube 9 is spirally arranged inside the compartment 8, and its upper rear end is electrically connected to the liquid storage tank 10. The lower end of a first reciprocating screw 14 is embedded inside the sealing tube 12, and the first reciprocating screw 14 is rotatably connected to the sealing tube 12. The first reciprocating screw 14 is threadedly connected to the piston 13, and the piston 13 is slidably connected to the inner wall of the sealing tube 12. A liquid inlet check valve 15 is electrically connected to the lower left end of the sealing tube 12, and the liquid inlet check valve 15 is electrically connected to the liquid storage tank 10. The lower right end of the sealing tube 12 is connected to a liquid outlet check valve 16, and the end of the liquid outlet check valve 16 is connected to the liquid inlet pipe 24. The heating tube 9, which is spirally arranged, can evenly heat the asphalt inside the mixing tank 1. The piston 14 is driven by the first reciprocating screw 14 to reciprocate inside the sealing tube 12. During the movement, the heated liquid inside the storage tank 10 can be drawn into the sealing tube 12. During the reverse movement, it can be transported to the heat exchange tube 22 through the liquid outlet check valve 16 and the liquid inlet pipe 24. The liquid inside the heat exchange tube 22 is heated inside the combustion box 17 and then transported back to the heating tube 9 through the liquid outlet pipe 23 for circulation. The original liquid inside the heating tube 9 is transported back to the storage tank 10 through the other end. The electric heating wire 11 installed inside the liquid outlet tank 10 can preheat the heating tube 9 and the heated liquid inside the storage tank 10.

[0052] The contents not described in detail in this specification are prior art known to those skilled in the art. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-angle high-efficiency asphalt mixer, comprising a mixing tank (1), characterized in that: The mixing tank (1) is symmetrically equipped with support legs (2) at the lower end, and handles (3) are rotatably installed on the front and rear sides of the mixing tank (1). The mixing tank (1) is provided with an installation cavity (4) at the top, and an upper cover plate (5) is fixed at the top of the installation cavity (4). The mixing tank (1) is fixed with a discharge pipe (43) at the bottom. The upper right side of the upper cover plate (5) is equipped with a discharge box (6), and a power motor (7) is installed in the middle of the upper cover plate (5). The lower end of the power motor (7) is fixed with a first reciprocating screw (14). The mixing tank (1) has a compartment (8) inside, and a heating pipe (9) is installed inside the compartment (8). The heating pipe (9) extends to the installation cavity (4) at both ends. A sealing pipe (12) is fixed inside the installation cavity (4), and a piston (13) is installed inside the sealing pipe (12). A combustion box (17) is installed at the front end of the installation cavity (4), and a burner (18) is fixed inside the combustion box (17). An outlet pipe (23) and an inlet pipe (24) pass through the upper left and right sides of the combustion box (17), respectively. An igniter (19) is installed on the right side of the burner (18). The mixing tank (1) is provided with a first mixing frame (31) inside, and a second mixing frame (33) is provided inside the first mixing frame (31).

2. The multi-angle high-efficiency asphalt mixer according to claim 1, characterized in that: The installation cavity (4) is provided with a liquid storage tank (10) on the rear side, and the liquid storage tank (10) is provided with an array of heating wires (11) arranged in an equidistant array. The heating tube (9) is spirally arranged inside the compartment (8), and the upper rear end of the heating tube (9) is connected to the liquid storage tank (10).

3. The multi-angle high-efficiency asphalt mixer according to claim 2, characterized in that: The lower end of the first reciprocating screw (14) is embedded inside the sealing tube (12), and the first reciprocating screw (14) is rotatably connected to the sealing tube (12). The first reciprocating screw (14) is threadedly connected to the piston (13), and the piston (13) is slidably connected to the inner wall of the sealing tube (12). The lower left end of the sealing tube (12) is connected to an inlet check valve (15), and the inlet check valve (15) is connected to the liquid storage tank (10). The lower right end of the sealing tube (12) is connected to an outlet check valve (16), and the end of the outlet check valve (16) is connected to the inlet pipe (24).

4. A multi-angle high-efficiency asphalt mixer according to claim 1, characterized in that: The combustion chamber (17) is equipped with a heat exchange tube (22), and the left and right ends of the heat exchange tube (22) are connected to the liquid outlet pipe (23) and the liquid inlet pipe (24) respectively. The heat exchange tube (22) is designed in a spiral shape. The burner (18) is connected to a solenoid valve (20) on the left side, and the solenoid valve (20) is connected to an air inlet pipe (21) on the left side. The lower end of the air inlet pipe (21) extends into the stirring tank (1).

5. A multi-angle high-efficiency asphalt mixer according to claim 4, characterized in that: The combustion chamber (17) is connected to the right end of the gas outlet pipe (25), and the right side of the gas outlet pipe (25) extends to the outside of the mounting cavity (4). A filter (26) is fixed to the outside of the right side of the mounting cavity (4), and the end of the gas outlet pipe (25) is connected to the filter (26). The rear end of the filter (26) is connected to the gas outlet valve (27), and the end of the liquid outlet pipe (23) is connected to the front end of the heating pipe (9).

6. A multi-angle high-efficiency asphalt mixer according to claim 5, characterized in that: The lower end of the air inlet pipe (21) is fitted with an external toothed ring (29), and the upper end of the external toothed ring (29) is rotatably connected to the air inlet pipe (21). The bottom end of the air inlet pipe (21) is provided with an axial flow fan blade (28), and the axial flow fan blade (28) is fixedly connected to the inner wall of the external toothed ring (29). The lower end of the first reciprocating screw (14) extends into the interior of the mixing tank (1), and the lower end of the first reciprocating screw (14) is fixed with a first gear (30), and the first gear (30) meshes with the external toothed ring (29).

7. A multi-angle high-efficiency asphalt mixer according to claim 1, characterized in that: The bottom end of the first reciprocating screw (14) is fixedly connected to the first stirring frame (31), and both the first stirring frame (31) and the second stirring frame (33) are equilateral frame designs. The second reciprocating screw (35) is fixed on the inner right side of the first stirring frame (31), and the second reciprocating screw (35) passes through the second stirring frame (33). The left end of the second reciprocating screw (35) is threadedly connected to the second stirring frame (33). The stirring shaft (34) is fixed on the inner wall of the second stirring frame (33), and the stirring shaft (34) is distributed in an equidistant array.

8. A multi-angle high-efficiency asphalt mixer according to claim 7, characterized in that: The second stirring frame (33) has a transmission sleeve (37) extending through its left side, and a transmission rod (36) is slidably connected inside the transmission sleeve (37). The transmission rod (36) has a square structure design, and the left side of the transmission rod (36) extends into the interior of the first stirring frame (31). The left side of the transmission rod (36) is rotatably connected to the first stirring frame (31).

9. A multi-angle high-efficiency asphalt mixer according to claim 8, characterized in that: The left end of the transmission rod (36) is fixed with a first bevel gear (38). The left side of the first stirring frame (31) is rotatably connected to a transmission shaft (39). The upper end of the transmission shaft (39) is fixed with a second bevel gear (40), and the upper end of the second bevel gear (40) meshes with the first bevel gear (38). The bottom end of the transmission shaft (39) is fixed with a second gear (41). The bottom end of the stirring tank (1) is fixed with a transmission gear ring (42), and the second gear (41) meshes with the transmission gear ring (42).

10. A multi-angle high-efficiency asphalt mixer according to claim 9, characterized in that: The lower end of the first stirring frame (31) is fixed with an auger shaft (32), and the lower end of the auger shaft (32) extends into the inside of the feed pipe (43), and the auger shaft (32) is adapted to the inner wall size of the feed pipe (43).

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