A modified asphalt heating device
By employing a combination structure of piston, offset baffle, and blocking block in the modified asphalt heating device, negative pressure collection and filtration of asphalt fumes are achieved through cam transmission, solving the problem of incomplete asphalt fume treatment in existing technologies and realizing effective purification and safe treatment of asphalt fumes.
Patent Information
- Application Number
- CN202522188724.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-16
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-10-16
AI Technical Summary
Existing modified asphalt heating devices are unable to effectively collect and filter solid and liquid particles and gaseous organic matter in asphalt fumes, which poses a hazard to workers.
A modified asphalt heating device was designed, which adopts a combination structure of piston, offset baffle and blocking block. The rotating drum is driven up and down by cam drive to realize negative pressure collection and filtration of asphalt fumes, and the fumes are purified by filter plate and purification box.
It effectively prevents the drift and repeated entry of asphalt fumes, and achieves the filtration and purification of solid particles and gaseous organic matter in asphalt fumes, thus protecting the health of workers.
Smart Images

Figure CN224678003U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of modified asphalt heating technology, specifically a modified asphalt heating device. Background Technology
[0002] Modified asphalt is an asphalt binder made by adding external admixtures such as rubber, resin, polymer, finely ground rubber powder or other fillers, or by taking measures such as light oxidation processing of asphalt to improve the performance of asphalt or asphalt mixture. The biggest advantage of finished modified asphalt is that it is very convenient to use.
[0003] China has disclosed a modified asphalt heating device, with the public number CN219885987U. The device heats the modified asphalt inside the inner cylinder by adding modified asphalt into the inner cylinder and controlling the heating plate on the bottom surface of the outer cylinder to operate. The ceramic gasket can support the inner cylinder and prevent the heat from the inner cylinder from being transferred to the outer cylinder, thus making the heating speed faster.
[0004] Based on the above-disclosed solutions and existing technologies, it is difficult to collect and filter the asphalt fumes emitted during the heating of modified asphalt. Asphalt fumes contain a large number of solid and liquid particles as well as gaseous organic matter, which can cause great harm to the health of workers. Therefore, we propose a modified asphalt heating device. Utility Model Content
[0005] The purpose of this invention is to provide a modified asphalt heating device to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a modified asphalt heating device, comprising a mounting frame and a dust extraction pipe. A tank is fixedly connected inside the mounting frame, and a stirring shaft is rotatably connected inside the tank. Stirring rods are evenly spaced on the surface of the stirring shaft, and a scraper is fixedly connected to one end of each stirring rod. A filter plate is provided at the top of the tank, and a striking block is provided at the bottom of the filter plate. A rotating cylinder is fixedly connected to the top of the striking block. The top of the rotating cylinder penetrates the top of the tank and is connected to a ring via a connecting frame. A cam is provided inside the ring. The stirring shaft is rotatably disposed inside the rotating cylinder, and a bevel gear set A is fixedly connected to the top of the stirring shaft. One end of the bevel gear set A is connected to the intermediate shaft of the cam via a synchronous belt A.
[0007] A fixed baffle is fixedly connected inside the suction pipe. An offset baffle is connected to the bottom of the fixed baffle via a hinge. A piston is slidably installed inside the top of the suction pipe. The top of the piston is connected to a rotating drum via a connecting rod. One end of the suction pipe is connected to an exhaust pipe. A blocking ring is fixedly connected inside the exhaust pipe. A blocking block is abutted on one side of the blocking ring. A filter plate is installed inside the exhaust pipe on one side of the blocking block. A cleaning shaft is rotatably connected to the surface of the filter plate. A purification box is connected to the top of the exhaust pipe.
[0008] Optionally, a groove is provided on the inner wall of the tank, and a slider is slidably disposed inside the groove, the surface of the slider being connected to the filter plate.
[0009] Optionally, one end of the clearing shaft is fixedly connected to a bevel gear set B, the top of the bevel gear set B is fixedly connected to a bevel gear set C, and one end of the bevel gear set C is connected to the intermediate shaft of the cam via a timing belt B.
[0010] Optionally, activated carbon adsorption plates are evenly spaced inside the purification box, and the purification box is fixedly connected to the mounting frame via an L-shaped plate.
[0011] Optionally, a cleaning scraper is connected to one end of the cleaning shaft, the cleaning scraper abuts against the filter plate, and a collection hopper is connected to the bottom of the exhaust pipe.
[0012] Optionally, the bottom of the tank is connected to a discharge pipe, the bottom of the discharge pipe is equipped with a valve, and the top of the tank is equipped with a feed pipe.
[0013] Optionally, the top of the tank is equipped with a mounting plate for rotatably connecting the intermediate shaft of the cam and one end of the bevel gear set A.
[0014] Optionally, one end of the blocking block is connected to the blocking ring via two springs.
[0015] The technical effects and advantages of this utility model are as follows:
[0016] 1. This utility model uses a piston, an offset baffle, and a blocking block. The rotation of the cam drives the rotating drum to move up and down. The up and down movement of the rotating drum causes the piston at one end of the connecting rod to slide inside the suction pipe. When the connecting rod drives the piston to move upward, a negative pressure is generated inside the suction pipe. The negative pressure opens the offset baffle, collecting the asphalt fumes inside the tank and preventing the asphalt fumes from drifting into the air. At the same time, it provides convenience for subsequent asphalt fumes filtration.
[0017] 2. This utility model uses a piston, a blocking block, and a filter plate. The rotating drum moves downward, causing the connecting rod connected to one end of the drum to drive the piston downward. The negative pressure causes the offset baffle to reset, preventing asphalt fumes from returning to the tank. At the same time, as the piston moves downward, the gas pushes open the blocking block, and the asphalt fumes are discharged into the exhaust pipe. The asphalt fumes pass through the filter plate, which filters the dust contained in the fumes. The filtered asphalt fumes are then discharged into the purification chamber for purification, preventing solid particles and gaseous organic matter in the asphalt fumes from being discharged without filtration and causing harm to the workers. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the striking block and scraper structure of this utility model;
[0020] Figure 3 This is a schematic diagram of the suction pipe and exhaust pipe of this utility model.
[0021] In the diagram: 1. Mounting bracket; 2. Tank body; 3. Agitator shaft; 4. Scraper; 5. Filter plate; 6. Impact block; 7. Rotary drum; 8. Ring; 9. Cam; 10. Bevel gear set A; 11. Suction pipe; 12. Offset baffle; 13. Piston; 14. Exhaust pipe; 15. Blocking block; 16. Filter plate; 17. Cleaning shaft; 18. Purification box. Detailed Implementation
[0022] 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.
[0023] This utility model provides, for example Figure 1-3The modified asphalt heating device shown includes a mounting frame 1 and a dust extraction pipe 11. A tank 2 is fixedly connected inside the mounting frame 1. A discharge pipe is connected to the bottom of the tank 2, and a valve is installed at the bottom of the discharge pipe. A feed pipe is installed at the top of the tank 2. A stirring shaft 3 is rotatably connected inside the tank 2. Stirring rods are evenly spaced on the surface of the stirring shaft 3, and a scraper 4 is fixedly connected to one end of each stirring rod. A filter plate 5 is installed at the top inside the tank 2. A groove is formed on the inner wall of the tank 2, and a slider is slidably mounted inside the groove. The surface of the slider is connected to the filter plate 5. A striking block 6 is installed at the bottom of the filter plate 5. The striking block 6 vibrates up and down to strike the filter holes, preventing clogging and affecting work efficiency. A rotating drum 7 is fixedly connected to the top of the striking block 6. The top of the rotating drum 7 passes through the top of the tank 2 and is connected to a ring 8 via a connecting frame. A cam 9 is installed inside the ring 8. The stirring shaft 3 is rotatably mounted inside the rotating drum 7. 3. A bevel gear set A10 is fixedly connected to the top. The bevel gear set A10 consists of two bevel gears. One bevel gear is fixedly connected to the stirring shaft 3, and the other bevel gear is connected to the intermediate shaft of the cam 9 via a synchronous belt A. One end of the bevel gear set A10 is connected to the intermediate shaft of the cam 9 via a synchronous belt A. The other bevel gear and one end of the intermediate shaft of the cam 9 are both fixedly connected to pulleys A for transmission by the synchronous belt A. The top of the tank 2 is equipped with a mounting plate A for rotatably connecting the intermediate shaft of the cam 9 and one end of the bevel gear set A10. On the opposite side of the mounting plate A, a mounting plate B is installed. One end of the cam 9 passes through the mounting plate B and is connected to the output shaft of the motor. A horizontal plate for installing the motor is installed on the top of the mounting plate B. The top of the mounting plate A and the mounting plate B are provided with a protective shell. One side of the protective shell has an opening for the synchronous belt B to pass through. The details in the figure are not elaborated further.
[0024] A fixed baffle is fixedly connected inside the suction pipe 11. A hinged offset baffle 12 is connected to the bottom of the fixed baffle. A piston 13 is slidably mounted inside the top of the suction pipe 11. The top of the piston 13 is connected to the rotating drum 7 via a connecting rod. One end of the suction pipe 11 is connected to an exhaust pipe 14. A blocking ring is fixedly connected inside the exhaust pipe 14. A blocking block 15 abuts against one side of the blocking ring. When the piston 13 moves downward, the gas inside the suction pipe 11 is compressed, opening the blocking block 15. When the piston 13 moves upward... When activated, the negative pressure inside the suction pipe 11 resets the blockage block 15. One end of the blockage block 15 is connected to the blockage ring via two springs. A filter plate 16 is installed inside the exhaust pipe 14 on one side of the blockage block 15. A cleaning shaft 17 is rotatably connected to the surface of the filter plate 16. One end of the cleaning shaft 17 is connected to a cleaning scraper, which abuts against the filter plate 16. A collection hopper is connected to the bottom of the exhaust pipe 14. The particles scraped off from the surface of the filter plate 16 fall into the collection hopper for collection. After the device completes its operation, it can... Open the valve at the bottom of the collection hopper to pour out the particles inside. One end of the rotating shaft 17 is fixedly connected to a bevel gear set B, and the top of the bevel gear set B is fixedly connected to a bevel gear set C. The bevel gear set B is covered with a hollow round shell to prevent asphalt fumes from damaging the bevel gear set B. The bevel gear set C is covered with a protective shell, one side of which is connected to the purification box 18. The hollow round shell is not described in detail in the figure. One end of the bevel gear set C is connected to the intermediate shaft of the cam 9 via a synchronous belt B. Both the bevel gear set C and the intermediate shaft of the cam 9 are fixedly connected to pulleys B for synchronous belt B. The top of the exhaust pipe 14 is connected to the purification box 18. Activated carbon adsorption plates are evenly spaced inside the purification box 18. The activated carbon adsorption plates can be replaced to prevent the adsorption effect from deteriorating over time and affecting gas purification. The purification box 18 is fixedly connected to the mounting bracket 1 via an L-shaped plate. The activated carbon adsorption plates are vertically arranged on one side of the purification box 18. One side of the purification box 18 is open to facilitate the exhaust of the adsorbed air.
[0025] The implementation principle of the modified asphalt heating device in this embodiment is as follows: Modified asphalt is poured into tank 2 through the feed pipe. The modified asphalt is filtered through filter plate 5. The filtered modified asphalt falls into tank 2 for heating and stirring. Some of the modified asphalt is blocked in the filter holes on the surface of filter plate 5. The motor is started to make cam 9 rotate. The rotation of cam 9 drives the rotating drum 7 to move up and down, causing the striking block 6 connected to the bottom of the rotating drum 7 to move up and down, vibrating and striking the filter plate 5. This causes the modified asphalt blocked in the filter holes to fall or bounce up and be filtered again. During the heating and stirring of the modified asphalt, particles and gaseous organic matter are generated. The rotation of cam 9 drives the rotating drum 7 to move up and down, and the up and down movement of the rotating drum 7 drives the movable part at one end of the connecting rod. As the plug 13 slides inside the suction pipe 11, the connecting rod drives the piston 13 to move upward, generating a negative pressure inside the suction pipe 11. This negative pressure opens the offset baffle 12, collecting the asphalt fumes inside the tank 2. The rotating drum 7 moves downward, causing the connecting rod connected to one end of the drum 7 to drive the piston 13 downward. The negative pressure causes the offset baffle 12 to reset, preventing the asphalt fumes from returning to the tank 2. Simultaneously, as the piston 13 moves downward, the gas pushes open the blockage block 15, and the asphalt fumes are discharged into the exhaust pipe 14. The asphalt fumes pass through the filter plate 16, which filters the dust contained in the fumes. The filtered asphalt fumes are then discharged into the purification box 18 for purification, preventing solid particles and gaseous organic matter in the asphalt fumes from being discharged unfiltered and causing harm to the workers.
[0026] 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A modified asphalt heating device, characterized in that, include: Mounting frame (1), the mounting frame (1) is fixedly connected to a tank (2), the tank (2) is rotatably connected to a stirring shaft (3), the surface of the stirring shaft (3) is connected with stirring rods at equal intervals, one end of the stirring rod is fixedly connected to a scraper (4), the top of the tank (2) is provided with a filter plate (5), the bottom of the filter plate (5) is provided with a striking block (6), the top of the striking block (6) is fixedly connected to a rotating cylinder (7), the top of the rotating cylinder (7) passes through the top of the tank (2) and is connected to a ring (8) through a connecting frame, the inside of the ring (8) is provided with a cam (9), the stirring shaft (3) is rotatably arranged inside the rotating cylinder (7), the top of the stirring shaft (3) is fixedly connected to a bevel gear set A (10), one end of the bevel gear set A (10) is connected to the intermediate shaft of the cam (9) through a synchronous belt A; A vacuum tube (11) is provided with a fixed baffle inside. The bottom of the fixed baffle is connected to an offset baffle (12) via a hinge. A piston (13) is slidably provided inside the top of the vacuum tube (11). The top of the piston (13) is connected to a rotating drum (7) via a connecting rod. One end of the vacuum tube (11) is connected to an exhaust pipe (14). A blocking ring is fixedly connected inside the exhaust pipe (14). A blocking block (15) is abutted on one side of the blocking ring. A filter plate (16) is provided inside the exhaust pipe (14) on one side of the blocking block (15). A cleaning shaft (17) is rotatably connected to the surface of the filter plate (16). The top of the exhaust pipe (14) is connected to a purification box (18).
2. The modified asphalt heating device according to claim 1, characterized in that: The inner wall of the tank (2) is provided with a sliding groove, and a slider is slidably arranged inside the sliding groove. The surface of the slider is connected to the filter plate (5).
3. The modified asphalt heating device according to claim 1, characterized in that: One end of the clearing shaft (17) is fixedly connected to a bevel gear set B, and the top of the bevel gear set B is fixedly connected to a bevel gear set C. One end of the bevel gear set C is connected to the intermediate shaft of the cam (9) via a synchronous belt B.
4. The modified asphalt heating device according to claim 1, characterized in that: The purification box (18) is equipped with activated carbon adsorption plates at equal intervals inside, and the purification box (18) is fixedly connected to the mounting frame (1) through an L-shaped plate.
5. The modified asphalt heating device according to claim 1, characterized in that: One end of the cleaning shaft (17) is connected to a cleaning scraper, which abuts against the filter plate (16), and the bottom of the exhaust pipe (14) is connected to a collection hopper.
6. The modified asphalt heating device according to claim 1, characterized in that: The bottom of the tank (2) is connected to a discharge pipe, the bottom of which is equipped with a valve, and the top of the tank (2) is equipped with a feed pipe.
7. The modified asphalt heating device according to claim 1, characterized in that: The top of the tank (2) is equipped with a mounting plate for rotating connection between the intermediate shaft of the cam (9) and one end of the bevel gear set A (10).
8. The modified asphalt heating device according to claim 1, characterized in that: One end of the blocking block (15) is connected to the blocking ring by two springs.
Citation Information
Patent Citations
Modified asphalt heating device
CN219885987U