High-efficiency water-stable broken stone stirring equipment with dust removal structure
By combining staggered blade design, lifting mechanism and spray components in the water-stabilized crushed stone mixing equipment, the problem of poor dust removal effect of the vacuum dust collection device is solved, and a more efficient mixing and dust removal effect is achieved.
Patent Information
- Application Number
- CN202520300049.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-24
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-02-24
AI Technical Summary
In the mixing and processing of water-stabilized crushed stone raw materials, the vacuum dust collection device is difficult to completely absorb the dust, resulting in poor dust removal effect.
A high-efficiency mixing device for water-stabilized crushed stone with a dust removal structure was designed. It adopts a staggered design of forward and reverse blades, combined with a lifting mechanism and a spray assembly. Through the integrated application of the spray assembly and the adjustment mechanism, the uniform distribution of water mist is achieved, which enhances the mixing efficiency and improves the dust removal efficiency.
It effectively enhances the mixing efficiency, ensures the full mixing of water-stabilized crushed stone, prevents dust leakage, improves dust removal efficiency, and further mixes and stirs the water-stabilized crushed stone.
Smart Images
Figure CN223777470U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of road construction, and in particular to a high-efficiency mixing device for water-stabilized crushed stone with a dust removal structure. Background Technology
[0002] In the construction of infrastructure such as highways and bridges, water-stabilized crushed stone plays a vital role as an indispensable road base material. Its quality directly affects the stability and durability of the overall project, as well as the service life of the road and driving safety. Therefore, ensuring the quality of water-stabilized crushed stone is an important part of ensuring the quality of infrastructure construction.
[0003] However, the mixing and processing of water-stabilized crushed stone raw materials often generates a large amount of dust, which not only seriously pollutes the surrounding environment and threatens the health of the operators, but also leads to unnecessary material loss, thereby increasing production costs. In addition, some dust collection devices using air extraction are unable to completely absorb the dust, resulting in poor dust removal efficiency.
[0004] Therefore, in the above-mentioned process of mixing and processing water-stabilized crushed stone raw materials, the vacuum dust collection device is difficult to completely absorb the dust, resulting in poor dust removal effect. A high-efficiency mixing device for water-stabilized crushed stone with a dust removal structure can be designed. Compared with the traditional vacuum dust removal method, it can distribute water mist more evenly and widely, which not only improves the dust removal efficiency, but also further mixes and stirs the water-stabilized crushed stone. Utility Model Content
[0005] In order to overcome the problem that the vacuum dust collection device is unable to completely absorb the dust in the mixing and processing of water-stabilized crushed stone raw materials, resulting in poor dust removal effect.
[0006] The technical solution of this utility model is as follows: a high-efficiency mixing device for water-stabilized crushed stone with a dust removal structure, including a base, a mixing drum installed at the upper end of the base, a discharge pipe provided on the outer wall of the mixing drum, a cavity opened inside the base, a rotating mechanism installed in the cavity, a mixing shaft installed in the rotating mechanism, the mixing shaft extending upward into the mixing drum, forward blades and reverse blades fixedly connected around the outer wall of the mixing shaft, the forward blades and reverse blades being staggered along the axial direction of the mixing shaft, a lifting mechanism provided at the upper end of the base, a dust removal cover provided in the lifting mechanism, a dust removal spray assembly provided in the dust removal cover, a bin provided at one end of the dust removal cover, an adjustment mechanism for driving the rotation of the spray assembly provided in the bin, and a bin door with a built-in self-locking structure hinged at the upper end of the bin.
[0007] Preferably, the rotating mechanism includes a first bearing seat, two first bearing seats are arranged in parallel at the bottom of the cavity, a first rotating motor is installed in the cavity, a rotating shaft is rotatably connected in the first bearing seat on the left, the upper end of the rotating shaft is connected to the output shaft of the first rotating motor, and a stirring shaft is rotatably connected in the first bearing seat on the right, the rotating shaft is connected to the stirring shaft through a transmission structure.
[0008] Preferably, the transmission structure includes a driving gear, a driven gear is fixedly connected to the outer wall of the rotating shaft, and a driven gear is fixedly connected to the outer wall of the stirring shaft, with the driving gear and the driven gear meshing together.
[0009] Preferably, the lifting mechanism includes a support frame, with the upper end of the base fixedly connected to the support frame, a second rotary motor installed at the upper end of the support frame, a second bearing seat installed at the upper end of the base, a threaded rod rotatably connected inside the second bearing seat, the upper end of the threaded rod being connected to the output shaft of the second rotary motor, a movable seat threadedly connected to the outer wall of the threaded rod, and a dust cover fixedly connected to one end of the movable seat.
[0010] Preferably, the upper end of the base is fixedly connected to a guide rod, the upper end of the guide rod is fixedly connected to the lower end of the bracket, and the outer wall of the guide rod is slidably connected to the movable seat.
[0011] Preferably, the spray assembly includes a No. 3 bearing seat, a through groove is opened inside the dust removal cover, an annular plate adapted to the outer diameter of the mixing drum is fixedly connected to the bottom of the through groove, the inner wall of the through groove and the inner wall of the box are both provided with No. 3 bearing seats, a spray pipe is rotatably connected inside the No. 3 bearing seat, a nozzle is provided at the outlet of the spray pipe, a hose is provided at the inlet of the spray pipe, and the hose is connected to an external water source.
[0012] Preferably, the adjustment mechanism includes a hydraulic cylinder, with a hydraulic cylinder installed on the inner wall of one end of the compartment and a slide rod installed on the inner wall of the other end of the compartment. A rack is installed at the power output end of the hydraulic cylinder, and a spur gear is fixedly connected to the outer wall of the spray pipe. The rack is meshed with the spur gear, and the outer wall of the slide rod is slidably connected to the rack.
[0013] The beneficial effects of this utility model are as follows: This solution adopts a staggered design of forward and reverse blades, which effectively enhances the mixing efficiency and ensures that the water-stabilized crushed stone is fully and uniformly mixed. At the same time, the use of the lifting mechanism in conjunction with the dust removal cover not only facilitates the addition of materials, but also effectively prevents dust leakage during the mixing operation. More importantly, the integrated application of the spray component and the adjustment mechanism can distribute water mist more evenly and widely compared with the traditional air extraction dust removal method, which not only improves the dust removal efficiency, but also further mixes the water-stabilized crushed stone. Attached Figure Description
[0014] Figure 1 The diagram shown is a first three-dimensional structural schematic of the water-stabilized crushed stone high-efficiency mixing equipment with a dust removal structure according to this utility model.
[0015] Figure 2 The diagram shown is a second three-dimensional structural schematic of the water-stabilized crushed stone high-efficiency mixing equipment with a dust removal structure according to this utility model.
[0016] Figure 3 The diagram shown is a three-dimensional structural schematic of the rotating mechanism of the water-stabilized crushed stone high-efficiency mixing equipment with a dust removal structure according to this utility model.
[0017] Figure 4 The diagram shown is a three-dimensional structural schematic of the lifting mechanism of the water-stabilized crushed stone high-efficiency mixing equipment with dust removal structure according to this utility model.
[0018] Figure 5 The diagram shown is a three-dimensional structural schematic of the spray component and adjustment mechanism of the water-stabilized crushed stone high-efficiency mixing equipment with dust removal structure according to this utility model.
[0019] Explanation of reference numerals in the attached drawings: 1. Base; 2. Mixing drum; 3. Discharge pipe; 4. Cavity; 5. Mixing shaft; 6. Forward blade; 7. Reverse blade; 8. Dust collector cover; 9. Tank; 10. Tank door; 11. Bearing seat No. 1; 12. Rotary motor No. 1; 13. Rotating shaft; 14. Drive gear; 15. Driven gear; 16. Support; 17. Rotary motor No. 2; 18. Bearing seat No. 2; 19. Threaded rod; 20. Moving seat; 21. Guide rod; 22. Bearing seat No. 3; 23. Through groove; 24. Annular plate; 25. Spray pipe; 26. Nozzle; 27. Hose; 28. Hydraulic cylinder; 29. Slide rod; 30. Rack; 31. Spur gear. Detailed Implementation
[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0021] Please see Figure 1 - Figure 5This utility model provides an embodiment: a high-efficiency mixing device for water-stabilized crushed stone with a dust removal structure, including a base 1, a mixing drum 2 installed at the upper end of the base 1, a discharge pipe 3 provided on the outer wall of the mixing drum 2, a cavity 4 opened inside the base 1, a rotating mechanism installed in the cavity 4, a mixing shaft 5 installed in the rotating mechanism, the mixing shaft 5 extending upward into the mixing drum 2, a forward blade 6 and a reverse blade 7 fixedly connected around the outer wall of the mixing shaft 5, the forward blade 6 and the reverse blade 7 being staggered along the axial direction of the mixing shaft 5, a lifting mechanism provided at the upper end of the base 1, a dust removal cover 8 provided in the lifting mechanism, a dust removal spray assembly provided in the dust removal cover 8, a bin 9 provided at one end of the dust removal cover 8, an adjusting mechanism for driving the rotation of the spray assembly provided in the bin 9, a bin door 10 with a built-in self-locking structure hinged at the upper end of the bin 9, the base 1 serving as the supporting structure for the entire device, the mixing drum 2 being made of wear-resistant and corrosion-resistant alloy steel to ensure that it is not easily damaged during long-term use, the lower part of the outer wall of the mixing drum 2... The mixing unit is equipped with a discharge pipe 3 for discharging the mixed water-stabilized crushed stone. A valve on the discharge pipe 3 controls the material discharge speed. A rotating mechanism drives the rotation of the mixing shaft 5. Forward blades 6 and reverse blades 7 are staggered along the axis of the mixing shaft 5, forming staggered mixing zones. This design allows the water-stabilized crushed stone to be subjected to shear and impact forces in different directions during mixing, resulting in more efficient mixing. A lifting mechanism drives the lifting of the dust removal cover 8, allowing it to be opened or closed as needed, facilitating the feeding, mixing, and dust removal of the water-stabilized crushed stone. A spray assembly is installed inside the dust removal cover 8 to spray water mist during mixing, reducing dust emissions. A bin 9 is located at one end of the dust removal cover 8 to house the adjustment mechanism that drives the spray assembly. This design allows water mist to be sprayed evenly within the mixing area, improving dust removal efficiency. The upper end of the bin 9 is hinged with a self-locking door 10 for easy maintenance and replacement of the adjustment mechanism and spray assembly.
[0022] Please see Figure 1 and Figure 3In this embodiment, the rotating mechanism includes a first bearing seat 11. Two first bearing seats 11 are arranged parallel to each other at the bottom of the cavity 4. A first rotary motor 12 is installed inside the cavity 4. A rotating shaft 13 is rotatably connected inside the first bearing seat 11 on the left side. The upper end of the rotating shaft 13 is connected to the output shaft of the first rotary motor 12. A stirring shaft 5 is rotatably connected inside the first bearing seat 11 on the right side. The rotating shaft 13 is connected to the stirring shaft 5 through a transmission structure. The transmission structure includes a drive gear 14. The drive gear 14 is fixedly connected to the outer wall of the rotating shaft 13. The outer wall of the stirring shaft 5 is fixedly connected to... Driven gear 15 and driving gear 14 are meshed and connected. Bearing seat 11 is used to support and fix rotating shaft 13 and stirring shaft 5 to ensure that rotating shaft 13 and stirring shaft 5 can run smoothly and steadily during rotation. Rotary motor 12 is the power source of the rotating mechanism and is used to drive the rotation of rotating shaft 13 and stirring shaft 5. The transmission structure is used to transmit the power of rotating shaft 13 to stirring shaft 5. When rotating motor 12 drives rotating shaft 13 to rotate, driving gear 14 drives driven gear 15 to rotate together, thereby transmitting power to stirring shaft 5.
[0023] Please see Figure 1 and Figure 4 In this embodiment, the lifting mechanism includes a bracket 16. The upper end of the base 1 is fixedly connected to the bracket 16, and a second rotary motor 17 is provided at the upper end of the bracket 16. A second bearing seat 18 is provided at the upper end of the base 1, and a threaded rod 19 is rotatably connected inside the second bearing seat 18. The upper end of the threaded rod 19 is connected to the output shaft of the second rotary motor 17. A movable seat 20 is threadedly connected to the outer wall of the threaded rod 19. A dust cover 8 is fixedly connected to one end of the movable seat 20. A guide rod 21 is fixedly connected to the upper end of the base 1. The upper end of the guide rod 21 is fixedly connected to the lower end of the bracket 16, and the outer wall of the guide rod 21 is slidably connected to the movable seat 20. The bracket 16 is the supporting structure of the lifting mechanism. The motor 17 is the power source for the lifting mechanism. The second rotary motor 17 drives the threaded rod 19 to rotate through its output shaft. The second bearing seat 18 is used to support and fix the threaded rod 19. The second bearing seat 18 is inlaid with a precision rolling bearing to reduce the friction and wear of the threaded rod 19 during rotation, ensuring that the threaded rod 19 can rotate smoothly and steadily. The outer wall of the threaded rod 19 is machined with precision threads that match the threads inside the moving seat 20. When the second rotary motor 17 drives the threaded rod 19 to rotate, the moving seat 20 will move up and down along the threaded rod 19, thereby realizing the lifting function. The guide rod 21 is used to guide the movement trajectory of the moving seat 20 during the lifting process and prevent it from shaking.
[0024] Please see Figure 1 and Figure 5In this embodiment, the spray assembly includes a No. 3 bearing seat 22. A through groove 23 is provided inside the dust removal cover 8. An annular plate 24 adapted to the outer diameter of the mixing drum 2 is fixedly connected to the bottom of the through groove 23. The inner wall of the through groove 23 and the inner wall of the box 9 are both provided with No. 3 bearing seats 22. A spray pipe 25 is rotatably connected inside the No. 3 bearing seat 22. A nozzle 26 is provided at the outlet of the spray pipe 25. A flexible hose 27 is provided at the inlet of the spray pipe 25. The flexible hose 27 is connected to the outside water. The power supply connection and adjustment mechanism includes a hydraulic cylinder 28. The hydraulic cylinder 28 is installed on the inner wall of one end of the chamber 9, and a slide rod 29 is installed on the inner wall of the other end of the chamber 9. A rack 30 is installed at the power output end of the hydraulic cylinder 28. A spur gear 31 is fixedly connected to the outer wall of the spray pipe 25. The rack 30 meshes with the spur gear 31. The outer wall of the slide rod 29 slides against the rack 30. The third bearing seat 22 supports and fixes the spray pipe 25. The through groove 23 is opened in the dust removal cover 8. An internal trough-shaped structure has an annular plate 24 fixedly connected to its bottom, which is adapted to the outer diameter of the mixing drum 2, thereby sealing the upper end of the mixing drum 2. The nozzle 26 is the water outlet component of the spray pipe 25, responsible for spraying water mist into the mixing drum 2 at a certain pressure and angle to achieve the dust removal effect. At the same time, the sprayed water flow can also mix the water-stabilized crushed stone. The hose 27 is a pipe connecting the water inlet of the spray pipe 25 to the external water source. It has a certain degree of flexibility and elasticity and can adapt to the position changes of the spray pipe 25 during rotation. The hydraulic cylinder 28 is the power source of the adjustment mechanism, responsible for providing the driving force required for the rotation of the spray pipe 25. Its power output end is connected to the rack 30. When the hydraulic cylinder 28 works, it pushes the rack 30 to move along the direction of the slide bar 29, thereby causing the spray pipe 25 to swing, which changes the spray angle of the nozzle 26, thereby expanding the spray range of the nozzle 26 and improving the dust reduction effect.
[0025] In the workflow, the hose 27 is first connected to an external water source. Then, the water-stabilized crushed stone material is poured into the mixing drum 2. Next, the second rotary motor 17 is started, driving the threaded rod 19 to rotate. The moving seat 20 then moves down along the threaded rod 19 until the dust cover 8 tightly covers the top of the mixing drum 2. During this process, the guide rod 21 ensures that the moving seat 20 moves smoothly and avoids shaking. Then, the first rotary motor 12 is activated, driving the rotating shaft 13 to rotate. Through the meshing transmission of the drive gear 14 and the driven gear 15, the mixing shaft 5 starts to rotate. The forward blade 6 and the reverse blade 7 work together to efficiently mix the water-stabilized crushed stone.
[0026] At the same time, water from an external water source is delivered to the spray pipe 25 through the hose 27. The nozzle 26 then sprays water mist onto the dust raised in the mixing drum 2 to achieve the dust removal effect. Meanwhile, the hydraulic cylinder 28 is activated, pushing the rack 30 to move along the slide bar 29, which in turn drives the spray pipe 25 to swing, causing the spray angle of the nozzle 26 to change, thereby increasing the water mist coverage area and improving the dust removal efficiency.
[0027] Finally, the well-mixed water-stabilized crushed stone is discharged by opening the valve on the discharge pipe 3.
[0028] Through the above steps, this solution adopts a staggered design of forward blades 6 and reverse blades 7, which effectively enhances the mixing efficiency and ensures the full and uniform mixing of water-stabilized crushed stone. At the same time, the use of the lifting mechanism in conjunction with the dust cover 8 not only facilitates the addition of materials but also effectively prevents dust leakage during the mixing operation. More importantly, the integrated application of the spray component and the adjustment mechanism, compared with the traditional exhaust dust removal method, can more evenly and widely distribute water mist, which not only improves the dust removal efficiency but also further mixes the water-stabilized crushed stone. This solves the problem that in the mixing and processing of water-stabilized crushed stone raw materials, the exhaust dust collection device is difficult to completely absorb the dust, resulting in poor dust removal effect.
[0029] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.
Claims
1. A high-efficiency mixing device for water-stabilized crushed stone with a dust removal structure, comprising a base (1), a mixing drum (2) installed at the upper end of the base (1), and a discharge pipe (3) provided on the outer wall of the mixing drum (2); characterized in that: A cavity (4) is provided inside the base (1). A rotating mechanism is installed inside the cavity (4). A stirring shaft (5) is provided inside the rotating mechanism. The stirring shaft (5) extends upward into the stirring drum (2). A forward blade (6) and a reverse blade (7) are fixedly connected around the outer wall of the stirring shaft (5). The forward blade (6) and the reverse blade (7) are staggered along the axis of the stirring shaft (5). A lifting mechanism is provided at the upper end of the base (1). A dust removal cover (8) is provided inside the lifting mechanism. A dust removal spray assembly is provided inside the dust removal cover (8). A box (9) is provided at one end of the dust removal cover (8). An adjustment mechanism for driving the spray assembly to rotate is provided inside the box (9). A door (10) with a built-in self-locking structure is hinged at the upper end of the box (9).
2. The high-efficiency mixing equipment for water-stabilized crushed stone with a dust removal structure according to claim 1, characterized in that: The rotating mechanism includes a first bearing seat (11), and two first bearing seats (11) are arranged in parallel at the bottom of the cavity (4). A first rotating motor (12) is installed in the cavity (4). A rotating shaft (13) is rotatably connected in the first bearing seat (11) on the left side. The upper end of the rotating shaft (13) is connected to the output shaft of the first rotating motor (12). A stirring shaft (5) is rotatably connected in the first bearing seat (11) on the right side. The rotating shaft (13) is connected to the stirring shaft (5) through a transmission structure.
3. The high-efficiency mixing equipment for water-stabilized crushed stone with a dust removal structure according to claim 2, characterized in that: The transmission structure includes a drive gear (14), the outer wall of the rotating shaft (13) is fixedly connected to the drive gear (14), the outer wall of the stirring shaft (5) is fixedly connected to the driven gear (15), and the drive gear (14) and the driven gear (15) are meshed together.
4. The high-efficiency mixing equipment for water-stabilized crushed stone with a dust removal structure according to claim 3, characterized in that: The lifting mechanism includes a bracket (16), the upper end of the base (1) is fixedly connected to the bracket (16), the upper end of the bracket (16) is provided with a second rotary motor (17), the upper end of the base (1) is provided with a second bearing seat (18), a threaded rod (19) is rotatably connected inside the second bearing seat (18), the upper end of the threaded rod (19) is connected to the output shaft of the second rotary motor (17), the outer wall of the threaded rod (19) is threadedly connected to a movable seat (20), and one end of the movable seat (20) is fixedly connected to a dust removal cover (8).
5. The high-efficiency mixing equipment for water-stabilized crushed stone with a dust removal structure according to claim 4, characterized in that: The upper end of the base (1) is fixedly connected to the guide rod (21), the upper end of the guide rod (21) is fixedly connected to the lower end of the bracket (16), and the outer wall of the guide rod (21) is slidably connected to the movable seat (20).
6. The high-efficiency mixing equipment for water-stabilized crushed stone with a dust removal structure according to claim 5, characterized in that: The spray assembly includes a No. 3 bearing seat (22), a through groove (23) is provided in the dust cover (8), an annular plate (24) adapted to the outer diameter of the mixing drum (2) is fixedly connected to the bottom of the through groove (23), the inner wall of the through groove (23) and the inner wall of the box (9) are both provided with No. 3 bearing seats (22), a spray pipe (25) is rotatably connected in the No. 3 bearing seat (22), a nozzle (26) is provided at the outlet of the spray pipe (25), a hose (27) is provided at the inlet of the spray pipe (25), and the hose (27) is connected to the external water source.
7. The high-efficiency mixing equipment for water-stabilized crushed stone with a dust removal structure according to claim 6, characterized in that: The adjustment mechanism includes a hydraulic cylinder (28), a hydraulic cylinder (28) is provided on the inner wall of one end of the box (9), a slide rod (29) is provided on the inner wall of the other end of the box (9), a rack (30) is provided on the power output end of the hydraulic cylinder (28), a spur gear (31) is fixedly connected to the outer wall of the spray pipe (25), the rack (30) is meshed with the spur gear (31), and the outer wall of the slide rod (29) is slidably connected to the rack (30).