Asphalt mixing equipment with protective structure

By designing a sealed cover, feed hopper, and discharge pipe structure on the asphalt mixing equipment, combined with motor-driven mixing blades, the problems of inaccurate feeding and uneven mixing are solved, achieving precise feeding and thorough mixing, preventing asphalt splashing and smoke emission, and improving the equipment's protection and mixing effect.

CN224119396UActive Publication Date: 2026-04-14WUXI CITY ROAD & BRIDGE TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUXI CITY ROAD & BRIDGE TECH CO LTD
Filing Date
2025-05-13
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Existing asphalt mixing equipment is difficult to feed accurately, resulting in material spillage, poor mixing effect, and lack of protective measures, which leads to asphalt splashing and smoke emission, affecting quality.

Method used

The design incorporates a protective structure with a sealing cover, a feed hopper, and a discharge pipe. Combined with a motor-driven stirring blade, precise feeding and thorough mixing are achieved through toothed belt transmission, and flue gas is treated through an exhaust pipe.

Benefits of technology

It enables precise addition of materials, prevents spillage and splashing, ensures that asphalt is fully mixed with other components, reduces smoke pollution, and improves mixing effect and environmental friendliness.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses asphalt mixing equipment with a protective structure, which comprises a stirring tank, a discharge port of the stirring tank is connected with a valve through a flange, a transmission rod is rotatably inserted into the inner wall of the top of the stirring tank, and the outer wall of the transmission rod is fixedly connected with a plurality of first stirring blades and a plurality of second stirring blades. A feeding port is formed in the top of the stirring tank, a sealing cover is connected to the outer wall of the top of the stirring tank through a hinge and covers the feeding port, two L-shaped mounting rods are fixedly connected to the outer wall of the top of the stirring tank, a sliding groove is formed in one side of each L-shaped mounting rod, and an L-shaped supporting block is slidably connected into each sliding groove. The first gear is driven by the motor to rotate, and the transmission rod is driven to rotate under the transmission action of the toothed belt, so that the first stirring blade and the second stirring blade are driven to rotate, materials are stirred from different layers and angles, and asphalt is ensured to be fully mixed with other components.
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Description

Technical Field

[0001] This utility model relates to the field of road material processing technology, and in particular to an asphalt mixing equipment with a protective structure. Background Technology

[0002] Asphalt mixing equipment is an indispensable key piece of equipment in road construction. It is responsible for mixing the base asphalt, release agent, aggregate, and various additives in the asphalt cold mix according to the proportion to produce asphalt mixture that meets quality standards.

[0003] Currently, existing asphalt mixing equipment requires manual addition of materials using shovels, which makes it difficult to accurately add materials to the mixing mechanism, resulting in some material spillage. Furthermore, the lack of protective measures during the mixing process leads to asphalt splashing out and wasting materials. In addition, the mixing effect is poor, making it difficult to fully and evenly mix asphalt with other additives, thus affecting the quality of environmentally friendly asphalt. Utility Model Content

[0004] The purpose of this invention is to solve the problems of inconvenient feeding, insufficient protection, and uneven mixing in existing equipment, and to propose an asphalt mixing equipment with a protective structure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An asphalt mixing device with a protective structure includes a mixing tank. A valve is connected to the outlet of the mixing tank via a flange. A transmission rod is rotatably inserted into the inner wall of the top of the mixing tank. Multiple first mixing blades and multiple second mixing blades are fixedly connected to the outer wall of the transmission rod. An inlet is located at the top of the mixing tank. A sealing cap is hinged to the outer wall of the top of the mixing tank and covers the inlet. Two L-shaped mounting rods are fixedly connected to the outer wall of the top of the mixing tank. A groove is provided on one side of each L-shaped mounting rod, and an L-shaped support block is slidably connected within the groove. A feed hopper is fixedly connected at the top between the two L-shaped support blocks. A discharge pipe is fixedly connected to the bottom of the feed hopper. The discharge pipe has a square structure, and the discharge pipe and the feed hopper form a stepped structure. Baffles are slidably inserted between the two sides of the discharge pipe, with each end of the baffle passing through one of the two L-shaped support blocks.

[0007] Furthermore, a mounting plate is fixedly connected to the top of one side of the outer wall of the mixing tank, a support frame is fixedly connected to the top of the mounting plate, a motor is fixedly connected to the top of the support frame, a first gear is keyed to the output end of the motor, a second gear is keyed to the top end of the transmission rod, and a toothed belt is used for transmission between the second gear and the first gear.

[0008] Furthermore, a mounting base is fixedly connected to the bottom outer wall of the mixing tank, and multiple support legs are fixedly connected to the bottom of the mounting base.

[0009] Furthermore, an observation window is embedded in one side of the mixing tank, and a control panel is fixedly connected to the outer wall of one side of the mixing tank. The control panel is electrically connected to the motor.

[0010] Furthermore, the top outer wall of the sealing cover is fixedly connected with multiple handles, and the outer wall of the handles is adhered with anti-slip pads.

[0011] Furthermore, a support plate is fixedly connected to the bottom of the L-shaped mounting rod, and the support plate is fixedly connected to one side of the outer wall of the mixing tank.

[0012] Furthermore, a limiting plate is fixedly connected to one end between the two L-shaped mounting rods, and two positioning holes are provided on one side of one L-shaped mounting rod and one side of one L-shaped support block, with positioning pins inserted into the positioning holes.

[0013] Furthermore, the top of the mixing tank is sealed with an air outlet pipe.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. By pulling the feed hopper, the L-shaped support block moves within the chute, thereby moving the feed hopper and discharge pipe above the feed inlet to ensure precise material addition and prevent spillage.

[0016] 2. Driven by the motor, the first gear rotates, and then the transmission rod rotates under the transmission action of the toothed belt, thereby driving the first and second mixing blades to rotate, thus mixing the material from different levels and angles to ensure that the asphalt is fully mixed with other components.

[0017] 3. By placing a sealing cap on the feed inlet of the mixing tank, the mixing tank is sealed, thereby preventing asphalt splashing and the emission of fumes, thus providing a protective function.

[0018] 4. By setting up the exhaust pipe, the flue gas can be diverted for subsequent treatment, preventing the flue gas from overflowing and drifting near the device, affecting the operators, and playing a protective role. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of an asphalt mixing equipment with a protective structure proposed in this utility model.

[0020] Figure 2 This is a cross-sectional structural diagram of an asphalt mixing equipment with a protective structure proposed in this utility model;

[0021] Figure 3 This is a partially enlarged structural diagram of an asphalt mixing equipment with a protective structure proposed in this utility model.

[0022] Figure 4 This is a schematic diagram of the feed hopper section of an asphalt mixing device with a protective structure proposed in this utility model.

[0023] In the diagram: 1. Mounting base; 2. Support leg; 3. Mixing tank; 301. Valve; 4. Observation window; 5. Control panel; 6. Mounting plate; 7. Support frame; 8. Motor; 9. First gear; 901. Second gear; 10. Toothed belt; 11. Transmission rod; 12. First stirring blade; 1201. Second stirring blade; 13. Sealing cover; 14. L-shaped mounting rod; 1401. Support plate; 15. Slide groove; 16. L-shaped support block; 17. Feed hopper; 18. Discharge pipe; 19. Baffle; 20. Limiting plate; 21. Positioning pin; 2101. Positioning hole; 22. Air outlet pipe. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Reference Figures 1-4 An asphalt mixing equipment with a protective structure includes a mixing tank 3. The outlet of the mixing tank 3 is connected to a valve 301 via a flange. The top of the mixing tank 3 is provided with an inlet. The outer wall of the top of the mixing tank 3 is connected to a sealing cover 13 via a hinge. The sealing cover 13 covers the inlet. Covering the mixing tank 3 with the sealing cover 13 seals the mixing tank 3, thereby preventing asphalt splashing and smoke emission. The top of the mixing tank 3 is sealed with an exhaust pipe 22. The exhaust pipe 22 is connected to an external smoke treatment device. The generated smoke is input into the treatment device through the exhaust pipe 22 for treatment, preventing smoke from overflowing and drifting near the device, affecting the operators, and playing a protective role.

[0026] Two L-shaped mounting rods 14 are welded to the top outer wall of the mixing tank 3. A groove 15 is provided on one side of the L-shaped mounting rod 14. An L-shaped support block 16 is slidably connected in the groove 15. A feed hopper 17 is fixed to the top between the two L-shaped support blocks 16 by bolts. A soft silicone pad is provided on the inner wall of the feed hopper 17 to prevent the material from bouncing up and splashing when feeding.

[0027] A discharge pipe 18 is welded to the inclined surface at the bottom of the feed hopper 17. The discharge pipe 18 has a square structure and forms a stepped structure with the feed hopper 17. The bottom of the discharge pipe 18 is flush with the top of the mixing tank 3. The size of the discharge pipe 18 is slightly smaller than the feed inlet of the mixing tank 3. There is a baffle on one side of the feed inlet of the mixing tank 3. Pulling the feed hopper 17 causes the L-shaped support block 16 to move in the chute 15, thereby moving the feed hopper 17 and the discharge pipe 18 above the feed inlet for material addition. When not adding material, the feed hopper 17 is moved away from above the feed inlet to avoid obstruction of the first stirring blade 12 and the second stirring blade 1201 by the feeding and to speed up the feeding speed.

[0028] One side of one of the L-shaped mounting rods 14 and one side of one of the L-shaped support blocks 16 are provided with two positioning holes 2101. Positioning pins 21 are inserted into the positioning holes 2101. The positioning pins 21 are inserted into the positioning holes 2101 to fix the feed hopper 17 and prevent the feed hopper 17 from sliding. A baffle 19 is slidably inserted between the two sides of the discharge pipe 18. The two ends of the baffle 19 pass through the two L-shaped support blocks 16 respectively.

[0029] A transmission rod 11 is rotatably inserted into the inner top wall of the mixing tank 3. Multiple first mixing blades 12 and multiple second mixing blades 1201 are fixed to the outer wall of the transmission rod 11 by bolts. An installation plate 6 is welded to the top of one side of the outer wall of the mixing tank 3. A support frame 7 is fixed to the top of the installation plate 6 by bolts. A motor 8 is fixed to the top of the support frame 7 by bolts. A first gear 9 is keyed to the output end of the motor 8. A second gear 901 is keyed to the top end of the transmission rod 11. A toothed belt 10 is connected between the second gear 901 and the first gear 9. Driven by the motor 8, the first gear 9 rotates, and then the transmission rod 11 rotates under the transmission action of the toothed belt 10, thereby driving the first mixing blades 12 and the second mixing blades 1201 to rotate, thus mixing the material from different levels and angles to ensure that the asphalt is fully mixed with other components.

[0030] The bottom outer wall of the mixing tank 3 is fixed with a mounting base 1 by bolts. Multiple support legs 2 are fixed to the bottom of the mounting base 1 by bolts to support the mixing tank 3. An observation window 4 is embedded on one side of the mixing tank 3 to observe the mixing of materials. A control panel 5 is fixed to one side outer wall of the mixing tank 3 by bolts. The control panel 5 is electrically connected to the motor 8.

[0031] The top outer wall of the sealing cover 13 is fixed with multiple handles by bolts. The outer wall of the handles is glued with anti-slip pads, which makes it easy to open and close the sealing cover 13. The bottom of the L-shaped mounting rod 14 is welded with a support plate 1401. The support plate 1401 is fixedly connected to one side of the outer wall of the mixing tank 3, thereby strengthening the connection between the L-shaped mounting rod 14 and the mixing tank 3.

[0032] One end of the two L-shaped mounting rods 14 is fixed to the limiting plate 20 by bolts. When the sealing cover 13 is opened, it is placed on the limiting plate 20 to avoid affecting the rotation of the second gear 901.

[0033] The working principle of this embodiment is as follows: In use, the vent pipe 22 is connected to the gas collection and treatment device. First, the sealing cover 13 is flipped upward to open the feed inlet. Then, the feed hopper 17 is pulled to move the L-shaped support block 16 in the slide groove 15, thereby moving the feed hopper 17 and the discharge pipe 18 above the feed inlet. Then, the baffle 19 is pulled out from the discharge pipe 18. Next, the base asphalt, release agent, mineral aggregate, various additives and other raw materials in the asphalt cold mix are put into the mixing tank 3 from the feed inlet. After the feeding is completed, the feed hopper 17 is moved away from the top of the feed inlet, and the sealing cover 13 is put on to seal the mixing tank 3, thereby preventing asphalt splashing and smoke emission. Then, the generated smoke is fed into the gas collection and treatment device through the vent pipe 22 for collection and treatment.

[0034] Then, the motor 8 is started by controlling the control panel 5. Driven by the motor 8, the first gear 9 rotates, and then the transmission rod 11 rotates under the transmission action of the toothed belt 10, thereby driving the first mixing blade 12 and the second mixing blade 1201 to rotate, thus stirring the material from different levels and angles to ensure that the asphalt is fully mixed with other components. After the mixture is evenly mixed, the valve 301 is opened to discharge the asphalt into the mixing tank 3.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An asphalt mixing device with a protective structure, comprising a mixing tank (3), characterized in that, The discharge port of the mixing tank (3) is connected to a valve (301) via a flange. A transmission rod (11) is rotatably inserted into the inner wall of the top of the mixing tank (3). Multiple first stirring blades (12) and multiple second stirring blades (1201) are fixedly connected to the outer wall of the transmission rod (11). The top of the mixing tank (3) is provided with a feed inlet. A sealing cover (13) is connected to the outer wall of the top of the mixing tank (3) via a hinge. The sealing cover (13) covers the feed inlet. Two L-shaped mounting rods (14) are fixedly connected to the outer wall of the top of the mixing tank (3). A groove (15) is provided on one side of the mounting rod (14). An L-shaped support block (16) is slidably connected in the groove (15). A feed hopper (17) is fixedly connected to the top between the two L-shaped support blocks (16). A discharge pipe (18) is fixedly connected to the bottom of the feed hopper (17). The discharge pipe (18) has a square structure and forms a stepped structure with the feed hopper (17). A baffle (19) is slidably inserted between the two sides of the discharge pipe (18). The two ends of the baffle (19) pass through the two L-shaped support blocks (16) respectively.

2. The asphalt mixing equipment with a protective structure according to claim 1, characterized in that, A mounting plate (6) is fixedly connected to the top of one side of the outer wall of the mixing tank (3). A support frame (7) is fixedly connected to the top of the mounting plate (6). A motor (8) is fixedly connected to the top of the support frame (7). A first gear (9) is keyed to the output end of the motor (8). A second gear (901) is keyed to the top of the transmission rod (11). A toothed belt (10) is connected between the second gear (901) and the first gear (9).

3. The asphalt mixing equipment with a protective structure according to claim 2, characterized in that, The bottom outer wall of the mixing tank (3) is fixedly connected to a mounting base (1), and the bottom of the mounting base (1) is fixedly connected to multiple support legs (2).

4. The asphalt mixing equipment with a protective structure according to claim 1, characterized in that, An observation window (4) is embedded on one side of the mixing tank (3), and a control panel (5) is fixedly connected to the outer wall of one side of the mixing tank (3). The control panel (5) is electrically connected to the motor (8).

5. An asphalt mixing equipment with a protective structure according to claim 1, characterized in that, The top outer wall of the sealing cap (13) is fixedly connected with multiple handles, and the outer wall of the handles is glued with anti-slip pads.

6. The asphalt mixing equipment with a protective structure according to claim 1, characterized in that, The bottom of the L-shaped mounting rod (14) is fixedly connected to a support plate (1401), and the support plate (1401) is fixedly connected to the outer wall of one side of the mixing tank (3).

7. An asphalt mixing equipment with a protective structure according to claim 1, characterized in that, A limiting plate (20) is fixedly connected to one end between the two L-shaped mounting rods (14). Two positioning holes (2101) are provided on one side of one L-shaped mounting rod (14) and one side of one L-shaped support block (16). A positioning pin (21) is inserted into the positioning hole (2101).

8. An asphalt mixing equipment with a protective structure according to claim 1, characterized in that, The top of the mixing tank (3) is sealed with an air outlet pipe (22).