Asphalt modifier screening device
By using a double-layer screen and an eccentric wheel actuation assembly, the problems of poor screening effect and clogging in traditional asphalt modifier screening devices are solved, achieving uniform and efficient screening of modifier particles.
Patent Information
- Application Number
- CN202422929791.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-10-24
- Estimated Expiration
- 2034-11-29
AI Technical Summary
Traditional asphalt modifier screening devices have a simple screening structure, resulting in poor screening effect, failing to meet the precision requirements of modifiers, and are prone to clogging.
The device employs a double-layer screen structure and an eccentric wheel actuation assembly to perform multiple screenings through screens with different aperture sizes. The eccentric wheel drives the screen to vibrate, preventing clogging and achieving uniform screening of the modifier.
It improves the uniformity of modifier particle size, ensuring better dispersion of the modifier during asphalt mixing, thereby improving screening efficiency and preventing clogging.
Smart Images
Figure CN223465099U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of screening, particularly relates to a pitch modifier screening device. BACKGROUND
[0002] At present, the asphalt pavement mainly has the problems of pavement softening, oiling, rutting, wave, and upheaval in summer, and low-temperature cracking in winter, and the traditional petroleum asphalt cannot adapt to the change of pavement environment. In order to improve the quality of the asphalt pavement, with the development of highway transportation industry, people add natural or artificially synthesized organic or inorganic materials in the asphalt or asphalt mixture, which can be melted or dispersed in the asphalt to improve or enhance the road performance of the asphalt, improve the mechanical properties of the asphalt, and the natural or artificially synthesized organic or inorganic materials are collectively referred to as asphalt modifier, and the technology is also applied more and more widely.
[0003] In the production process, the SBS modifier may have the problems of agglomeration or large particles, so that the particle size is uneven, and the screening is needed to make the particle size more uniform, so that the dispersion is better when mixed with the asphalt. The traditional raw material screening device is usually driven by a vibrating motor to vibrate the screening box to realize the raw material screening, the screening structure is single, and the screening is usually single, so that the screening effect is poor, the accuracy of the modifier cannot be met, and too many large particles of the modifier on the screen can easily cause blockage, thereby reducing the screening efficiency. UTILITY MODEL CONTENT
[0004] The utility model aims at providing a pitch modifier screening device to solve at least any problem in the background art.
[0005] To achieve the above object, the utility model provides the following technical scheme: a pitch modifier screening device, which comprises a screening mechanism and a collecting box, the screening mechanism comprises a screening box, two screens, two fixing assemblies and two poking assemblies, the two screens are arranged in the upper half and the lower half of the screening box respectively, a protection frame is arranged around the two screens, the two protection frames are arranged in the screening box in an inclined manner, the two fixing assemblies are arranged above the two protection frames close to the two sides respectively, the two poking assemblies are arranged below the two protection frames close to the two sides respectively, a material collecting drawer is arranged in the right side of the screening box, a discharge port is arranged on the left side of the screening box, the collecting box is arranged on the left side of the screening box, and a feeding hopper is arranged on the top wall of the screening box close to the right side and communicates with the screening box, and the hopper opening of the feeding hopper is arranged above the right end of the protection frame.
[0006] Preferably, the fixing assembly comprises two fixing rods and two limiting rods, the two fixing rods are fixedly connected to the inner walls of the screening box on the upper sides of the two protection frames and have the same inclination angle with the protection frames, the two limiting rods are fixedly connected to the bottom of the fixing rods near the two ends and have the same inclination angle with the protection frames, the two limiting rods at the same end penetrate the protection frame and the protection frame slides on the limiting rods, the other end of the limiting rod is fixedly connected to a limiting sheet, a spring is sleeved on the limiting rod between the protection frame and the fixing rod, one end of the spring is fixedly connected to the protection frame and the other end is fixedly connected to the fixing rod.
[0007] Preferably, the pushing assembly comprises two rotating rods and four eccentric wheels, the two rotating rods are arranged at the middle positions below the two protection frames and the two ends of the rotating rods penetrate the two side walls of the screening box, the four eccentric wheels are arranged on the two rotating rods near the two ends, the two eccentric wheels at the same end are located at the bottom positions near the two sides of the adjacent protection frame, bearings are fixedly connected to the penetrating positions of the two rotating rods in the screening box.
[0008] Preferably, a fixed plate is fixedly connected to one side of the screening box and a driving motor is fixedly connected to the fixed plate, one end of the driving motor is fixedly connected to one end of the uppermost rotating rod and the other end of the rotating rod is fixedly connected to a driving sprocket, one end of the lowermost rotating rod corresponding to the driving sprocket is fixedly connected to a rotating sprocket, and the same chain is engaged between the driving sprocket and the rotating sprocket.
[0009] Preferably, two discharge inclined plates with the same inclination angle as the protection frame are arranged below the two protection frames near the left side, and the two ends of the two discharge inclined plates are fixedly connected to the two ends of the discharge port.
[0010] Preferably, the collecting box is fixedly connected to the left side of the screening box, a discharge drawer is inserted into the bottom position in the collecting box from the left side, a conveying port matched with the discharge port is arranged on the side adjacent to the screening box of the collecting box, and the two discharge inclined plates penetrate the conveying port and are located above the discharge drawer.
[0011] Preferably, the pore size of the uppermost screen is larger than that of the lowermost screen, and the right end of the protection frame is higher than the left end.
[0012] The beneficial effects of the utility model are as follows:
[0013] 1. The modified agent is screened multiple times through the two filter screens with different pore sizes, the screening effect is improved, the particle size of the screened modified agent is more uniform, the requirement for the precision of the modified agent is met, and the dispersion of the modified agent in the asphalt is better.
[0014] 2, start drive motor and drive the eccentric wheel on the rotating rod rotation, to the protection frame is moved, make the protection frame and screen vibration, through the inclined screen and the eccentric wheel is moved, make the screen on the large particle modifier fast rolling to the lower end of the screen, prevent the modifier from accumulation to cause the problem of blockage, improve the efficiency of screening. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is the three-dimensional structure schematic diagram of the screening box of the utility model;
[0016] Figure 2 It is the three-dimensional structure schematic diagram of the discharge chute of the utility model;
[0017] Figure 3 It is the sectional view of the screening box of the utility model;
[0018] Figure 4 It is the sectional three-dimensional structure schematic diagram of the protection frame and screen of the utility model;
[0019] Figure 5 It is the three-dimensional structure schematic diagram of the eccentric wheel of the utility model;
[0020] Figure 6 It is the sectional view of the collecting box of the utility model;
[0021] Figure 7 It is the sectional view of the discharge chute of the utility model.
[0022] In the drawing: 1, material collecting drawer; 2, screening box; 3, fixed plate; 4, drive motor; 5, collecting box; 6, feed hopper; 7, discharge port; 8, discharge chute; 9, protection frame; 10, screen; 11, chain; 12, rotating sprocket; 13, drive sprocket; 14, spring; 15, fixed rod; 16, rotating rod; 17, limiting rod; 18, eccentric wheel; 19, discharge drawer; 20, bearing; 21, limiting sheet; 22, discharge chute. DETAILED DESCRIPTION
[0023] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.
[0024] The utility model provides a Figures 1-7The asphalt modifier screening device shown in the application comprises a screening mechanism and a collecting box 5, the screening mechanism comprises a screening box 2, two screen meshes 10, two fixing assemblies and two poking assemblies, the two screen meshes 10 are arranged in the upper half and the lower half of the screening box 2 respectively, a protection frame 9 is arranged around each of the two screen meshes 10, the two protection frames 9 are arranged in the screening box 2 in an inclined manner, the two fixing assemblies are arranged above the two protection frames 9 near the two sides respectively, the two poking assemblies are arranged below the two protection frames 9 near the two sides respectively, a material collecting drawer 1 is arranged in the screening box 2 from the right side, a discharging port 7 is arranged on the left side of the screening box 2, the collecting box 5 is arranged on the left side of the screening box 2, and a feeding hopper 6 is arranged on the top wall of the screening box 2 near the right side and communicates with the screening box 2, and the hopper mouth of the feeding hopper 6 is located above the right end of the protection frame 9.
[0025] Before using the device, the device is connected to a power supply, and then a drive motor 4 is started by an external controller, and then a worker pours a modifier into the screening box 2 from the feeding hopper 6, the modifier falls into the higher end of the screen mesh 10, the uppermost rotating rod 16 is rotated under the action of the drive motor 4, the rotating rod 16 is facilitated to rotate under the action of the bearing 20, the uppermost rotating rod 16 drives the drive sprocket 13 to rotate, the drive sprocket 13 drives the rotating sprocket 12 to rotate under the action of the chain 11, the lowermost rotating rod 16 is rotated, and then the eccentric wheels 18 on the two rotating rods 16 are rotated to poke the two sides of the protection frame 9, when the protruding part of the eccentric wheel 18 contacts the protection frame 9, the protection frame 9 is poked upward, the protection frame 9 is moved upward along the limiting rod 17 due to the fixation of the limiting rod 17 to the fixing rod 15, at this time, the spring 14 is contracted under the extrusion of the protection frame 9, when the protruding part of the eccentric wheel 18 does not contact the protection frame 9, the spring 14 is rebounded due to the loss of the extrusion of the protection frame 9, so that the protection frame 9 drives the screen mesh 10 to vibrate, the modifier is screened, the larger particles of the modifier are filtered by the uppermost screen mesh 10, the filtered modifier falls into the lowermost screen mesh 10 to be filtered again, finally, the modifier meeting the size requirement falls into the material collecting drawer 1 from the lowermost screen mesh 10 to be collected, the modifiers not meeting the size requirement on the two screen meshes 10 fall into the discharging drawer 19 in the collecting box 5 from the discharging inclined plate 8.
[0026] The fixing assembly comprises two fixing rods 15 and two limiting rods 17, the two fixing rods 15 are fixedly connected to the inner walls of the screening boxes 2 on the upper sides of the two protection frames 9 and have the same inclination angle with the protection frames 9, the two limiting rods 17 are fixedly connected to the bottom of the fixing rods 15 near the two ends and have the same inclination angle with the protection frames 9, the two limiting rods 17 at the same end penetrate the protection frame 9 and the protection frame 9 slides on the limiting rod 17, the other end of the limiting rod 17 is fixedly connected to a limiting sheet 21, a spring 14 is sleeved on the limiting rod 17 between the protection frame 9 and the fixing rod 15, one end of the spring 14 is fixedly connected to the protection frame 9 and the other end is fixedly connected to the fixing rod 15, the poking assembly comprises two rotating rods 16 and four eccentric wheels 18, the two rotating rods 16 are arranged at the middle positions below the two protection frames 9 and the two ends of the rotating rods 16 penetrate the two side walls of the screening boxes 2, the four eccentric wheels 18 are arranged on the two rotating rods 16 near the two ends, the two eccentric wheels 18 at the same end are located at the bottom positions near the two sides of the adjacent protection frames 9, the two rotating rods 16 are fixedly connected with bearings 20 at the penetrating positions of the screening boxes 2 and the bearings 20 are embedded in the side walls of the screening boxes 2, one side of the screening box 2 is fixedly connected with a fixed plate 3 and the fixed plate 3 is fixedly connected with a driving motor 4, the output end of the driving motor 4 is fixedly connected with one end of the uppermost rotating rod 16 and the other end of the rotating rod 16 is fixedly connected with a driving sprocket 13, the lowermost rotating rod 16 is fixedly connected with a rotating sprocket 12 at the end corresponding to the driving sprocket 13, and the driving sprocket 13 and the rotating sprocket 12 are engaged with the same chain 11.
[0027] The limiting rod 17 limits the protection frame 9, the limiting sheet 21 prevents the protection frame 9 from sliding off the limiting rod 17, the fixing rod 15 fixes the limiting rod 17, thereby limiting and fixing the protection frame 9, the driving motor 4 is started to drive the uppermost rotating rod 16 to rotate, the bearing 20 facilitates the rotation of the rotating rod 16, the uppermost rotating rod 16 drives the driving sprocket 13 to rotate, under the action of the chain 11, the driving sprocket 13 drives the rotating sprocket 12 to rotate to make the lowermost rotating rod 16 rotate, thereby making the eccentric wheels 18 on the two rotating rods 16 rotate to poke the two sides of the protection frame 9, when the protruding part of the eccentric wheel 18 contacts the protection frame 9, the protection frame 9 will be poked upward, due to the fixation of the fixing rod 15 to the limiting rod 17, the protection frame 9 will move upward along the limiting rod 17, at this time, the spring 14 is contracted due to the extrusion of the protection frame 9, when the protruding part of the eccentric wheel 18 does not contact the protection frame 9, the spring 14 rebounds due to the loss of the extrusion of the protection frame 9, thereby realizing that the protection frame 9 drives the screen 10 to vibrate to screen the modifier.
[0028] Two protection frames 9 are provided with discharge inclined plates 8 with the same inclination angle as the protection frame 9 below the left side position, and the two ends of the two discharge inclined plates 8 are fixedly connected with the two ends of the discharge port 7, the right side of the collecting box 5 is fixedly connected with the left side of the screening box 2, the bottom position in the collecting box 5 is plugged from the left side with a discharge drawer 19, and the side adjacent to the screening box 2 of the collecting box 5 is provided with a material conveying port 22 matched with the discharge port 7, and the two discharge inclined plates 8 pass through the material conveying port 22 and are located above the discharge drawer 19.
[0029] The discharge inclined plate 8 has the same inclination angle as the protection frame 9, so that the modifier on the screen 10 falls into the discharge inclined plate 8 and is discharged from the material conveying port 22 into the discharge drawer 19 in the collecting box 5 through the discharge port 7 along the discharge inclined plate 8.
[0030] The pore size of the uppermost screen 10 is larger than that of the lowermost screen 10, and the right end of the protection frame 9 is higher than the left end.
[0031] The two screens 10 have different pore sizes, which facilitates more detailed screening of the modifier, so that the size of the screened modifier particles is more uniform, and the right end of the protection frame 9 corresponds to the feeding funnel 6, and the modifier falls onto the screen 10 on the protection frame 9, and since the protection frame 9 and the screen 10 are in an inclined state, the larger particles of the modifier roll along the filter screen, preventing the modifier from being blocked by excessive accumulation.
[0032] The above only describes preferred embodiments of the present application and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent replacement of some technical features, and any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.
Claims
1. An asphalt modifier screening device, characterized by: Including screening mechanism and collection box (5), the screening mechanism includes screening box (2), two screen meshes (10), two fixed assemblies and two poking assemblies, two screen meshes (10) are respectively arranged in the upper half and the lower half in screening box (2), and the periphery of two screen meshes (10) is provided with a protection frame (9), two protection frames (9) are obliquely arranged in screening box (2), two fixed assemblies are respectively arranged on the upper side near the two sides of two protection frames (9), two poking assemblies are respectively arranged on the lower side near the two sides of two protection frames (9), the screening box (2) is provided with a material collecting drawer (1) from the right side, the left side of the screening box (2) is provided with a discharge port (7), the collection box (5) is arranged on the left side of the screening box (2), the top wall of the screening box (2) is provided with a feeding hopper (6) communicated with the screening box (2) and the hopper mouth of the feeding hopper (6) is located above the right end of the protection frame (9).
2. The asphalt modifier screening device of claim 1, wherein: The fixed assembly includes two fixed rods (15) and two limiting rods (17), two fixed rods (15) are fixedly connected to the inner wall of the screening box (2) on the upper side near the two sides of the protection frame (9), and the inclination angle of the fixed rod (15) and the protection frame (9) is the same, two limiting rods (17) are fixedly connected to the bottom of the fixed rod (15) near the two ends, and the inclination angle of the fixed rod (15) and the protection frame (9) is the same, two limiting rods (17) at the same end penetrate the protection frame (9), and the protection frame (9) slides on the limiting rod (17), the other end of the limiting rod (17) is fixedly connected to a limiting piece (21), a spring (14) is sleeved on the limiting rod (17) between the protection frame (9) and the fixed rod (15), one end of the spring (14) is fixedly connected to the protection frame (9), and the other end is fixedly connected to the fixed rod (15).
3. The asphalt modifier screening device of claim 1, wherein: The poking assembly includes two rotating rods (16) and four eccentric wheels (18), two rotating rods (16) are respectively arranged at the middle position below two protection frames (9), and the two ends of the rotating rod (16) penetrate the two side walls of the screening box (2), four eccentric wheels (18) are respectively arranged on the positions near the two ends of the two rotating rods (16), two eccentric wheels (18) at the same end are located at the bottom position near the two sides of the adjacent protection frame (9), and bearings (20) are fixedly connected to the penetrating positions of the two rotating rods (16) in the screening box (2), and the bearings (20) are embedded in the side walls of the screening box (2).
4. The asphalt modifier screening device of claim 1, wherein: One side of the screening box (2) is fixedly connected with a fixed plate (3), and the fixed plate (3) is fixedly connected with a driving motor (4), one end of the output end of the driving motor (4) is fixedly connected with the uppermost rotating rod (16), and the other end of the rotating rod (16) is fixedly connected with a driving sprocket (13), one end of the lowermost rotating rod (16) corresponding to the driving sprocket (13) is fixedly connected with a rotating sprocket (12), and the same chain (11) is engaged between the driving sprocket (13) and the rotating sprocket (12).
5. The asphalt modifier screening device of claim 1, wherein: Two said protection frame (9) near the lower left position are equipped with the same angle of protection frame (9) discharge chute (8) and two ends of two discharge chute (8) and discharge port (7) opening fixed connection.
6. The asphalt modifier screening device of claim 5, wherein: The right side of the collecting box (5) is fixedly connected with the left side of the screening box (2), a discharge drawer (19) is plugged into the bottom position from the left side in the collecting box (5), one side of the collecting box (5) adjacent to the screening box (2) is provided with a material conveying port (22) matched with the discharge port (7), and the two discharge chutes (8) respectively pass through the material conveying port (22) and are located above the discharge drawer (19).
7. The asphalt modifier screening device of claim 1, wherein: The aperture of the uppermost screen (10) is larger than that of the lowermost screen (10), and the right end of the protection frame (9) is higher than the left end.