Old asphalt mixture stripping and screening device
By designing a stripping and screening device for old asphalt mixtures that combines multiple screen cylinders and mixing components, the problem of traditional devices being unable to strip and screen simultaneously has been solved, achieving efficient and precise screening results and improving work efficiency and quality.
Patent Information
- Application Number
- CN202422384549.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-29
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-09-29
AI Technical Summary
Traditional old asphalt mixture stripping and screening devices cannot be used simultaneously, are prone to clogging, and have poor screening quality, affecting the quality of subsequent use.
Design a device comprising multiple screen cylinders and a mixing assembly. The screen cylinders are spaced apart on a base and have screen holes. The mixing assembly has a spiral structure. The asphalt material is stripped and screened by rotating the screen cylinders and the mixing assembly.
It achieves efficient and precise asphalt material screening, improves work efficiency, avoids clogging and uneven screening, and ensures screening quality.
Smart Images
Figure CN223571246U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to road engineering technical field especially, relate to a kind of old asphalt mixture stripping screening device. BACKGROUND
[0002] Old asphalt mixture is by asphalt, mineral aggregate and filler according to certain proportion mixed and made paving road material, so that mineral aggregate surface is wrapped with asphalt, and the use value is high, old asphalt mixture can be used as common pavement material in highway, airport runway, parking lot etc.
[0003] In the related art, when the asphalt pavement is maintained and constructed, the original asphalt pavement is milled, recycled, crushed, stripped and screened, etc. The old asphalt mixture obtained in this process is divided into different grades of particles, and the proportion of each grade of particle size is fixed. Then, new asphalt mixture can be mixed with a certain proportion of graded old asphalt mixture to form new asphalt mixture with a certain particle size distribution and meet the specification requirements, so as to realize excellent performance and practicality of new asphalt mixture.
[0004] However, in the stripping and screening process of the conventional old asphalt mixture, the old asphalt mixture cannot be stripped and screened at the same time, which increases the time and reduces the processing efficiency of the old asphalt mixture. Moreover, the existing screening device cannot be fully dispersed, which is easy to form blockage and cannot be processed continuously in small quantities, thereby affecting the quality of subsequent screening and the quality of subsequent use of the old asphalt mixture. UTILITY MODEL CONTENT
[0005] The utility model discloses a kind of old asphalt mixture stripping screening devices to solve the problem that old asphalt mixture cannot be stripped and screened simultaneously, and the existing screening device cannot be fully dispersed, which is easy to form blockage, and cannot be processed continuously in small quantities, and the technical scheme as follows is used:
[0006] A kind of old asphalt mixture stripping screening device, comprising:
[0007] Base;
[0008] A plurality of screen barrels are arranged at intervals on the base, each screen barrel is used to limit a cavity, the cavity contains asphalt mixture, the screen barrel is provided with a screen hole, the screen hole penetrates the side wall of each screen barrel, and the outer periphery of the plurality of screen barrels is sleeved with an outer shell, and the outer shell is used to protect the plurality of screen barrels.
[0009] A stirring assembly is in a spiral shape, the stirring assembly is installed in one of the screen barrels, and the screen barrel and the stirring assembly are in an integral structure.
[0010] A support is located between the base and the shell, one end of the support is fixedly connected with the base, and the other end is movably connected with the shell;
[0011] In the assembled state, the shell is connected with the support through a rotating assembly, and the rotating assembly is driven to rotate the shell to drive the plurality of screen cylinders to rotate along the circumferential direction of the shell.
[0012] In some embodiments, the plurality of screen cylinders includes a first screen cylinder, a second screen cylinder, and a third screen cylinder, the first screen cylinder, the second screen cylinder, and the third screen cylinder are coaxially arranged and are connected through a connecting rod;
[0013] The first screen cylinder is provided with the stirring assembly, and the third screen cylinder is fixedly connected with the shell.
[0014] In some embodiments, the screen holes are in any one or more of a square structure, a circular structure, and a polygonal structure, the first screen cylinder has first screen holes, the second screen cylinder has second screen holes, and the third screen cylinder has third screen holes;
[0015] The size of the first screen hole is larger than that of the second screen hole, and the size of the second screen hole is larger than that of the third screen hole.
[0016] In some embodiments, a plurality of guide plates are further included, the plurality of guide plates are in a U-shaped structure, each guide plate is fixed to one end of the first screen cylinder, the second screen cylinder, and the third screen cylinder, and the guide plates extend towards opposite directions in the axial direction of the screen cylinders.
[0017] In some embodiments, the bottom of the guide plate is provided with a storage box, the storage box is provided with a plurality of storage cavities, the plurality of storage cavities are used to accommodate different levels of stone, and the same storage cavity is used to accommodate the same level of stone.
[0018] In some embodiments, the rotating assembly includes a rotating shaft and a driving motor, the output end of the driving motor is connected with the rotating shaft, the rotating shaft is installed on the base, and the shell is in gear connection with the rotating shaft, the driving motor is driven to rotate the rotating shaft to simultaneously drive the first screen cylinder, the second screen cylinder, and the third screen cylinder to rotate along the circumferential direction of the support.
[0019] In some embodiments, the support is located at both ends of the shell, in the assembled state, the support extends or shrinks along the thickness direction of the base to make the shell parallel to the base, and / or the shell is inclined relative to the base.
[0020] In some embodiments, a limiting seat is arranged on the base, and the limiting seat is rotationally connected with the shell through a bearing.
[0021] In the assembled state, the shell and the limiting seat have a preset angle, and the preset angle is 0°-60°.
[0022] Compared with the prior art, the technical progress achieved by the utility model lies in that:
[0023] The utility model discloses a plurality of sieve drums and stirring assemblies are arranged on the base, sieve holes are arranged on each sieve drum, the sieve holes can be set according to the particle grade of the asphalt mixture, the stirring assembly has a spiral structure, the stirring assembly is installed in one of the sieve drums, and the sieve drum and the stirring assembly have an integrated structure, during the operation of the device, the spiral stirring assembly and the rotating sieve drum are combined to simultaneously complete the screening and stripping of the asphalt mixture, so that accurate treatment and improved work efficiency are achieved, and the high precision and high efficiency of the device are ensured. BRIEF DESCRIPTION OF DRAWINGS
[0024] The drawings are used to provide a further understanding of the utility model, and constitute a part of the specification, are used together with the embodiments of the utility model to explain the utility model, and do not constitute the limitation on the utility model.
[0025] In the drawings:
[0026] Figure 1 It is the structure diagram of the screening device of stripping asphalt mixture of the utility model;
[0027] Figure 2 It is the schematic view of the screening device of stripping asphalt mixture of the utility model;
[0028] Figure 3 It is the side view of the screening device of stripping asphalt mixture of the utility model;
[0029] Figure 4 It is the schematic view of the sieve drum in the utility model;
[0030] Figure 5 It is the partial structure view of the sieve drum in the utility model;
[0031] Figure 6 It is the plan view of the screening device of stripping asphalt mixture of the utility model;
[0032] Figure 7 It is the use state view of the screening device of stripping asphalt mixture of the utility model.
[0033] In the figure: 1, base; 11, limiting seat; 2, screen cylinder; 21, cavity; 22, first screen cylinder; 23, second screen cylinder; 24, third screen cylinder; 3, screen hole; 31, first screen hole; 32, second screen hole; 33, third screen hole; 4, shell; 5, stirring assembly; 6, support; 7, rotating assembly; 71, rotating shaft; 72, driving motor; 8, connecting rod; 9, guide plate; 10, storage box; 101, storage cavity. DETAILED DESCRIPTION
[0034] The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of the present application will be described below with reference to the accompanying drawings.
[0035] As Figures 1 to 7 shown, the utility model discloses a kind of old asphalt mixture stripping screening devices, including base 1, screen cylinder 2, stirring assembly 5 and support 6, wherein, multiple screen cylinders 2 are arranged at intervals on base 1, so that base 1 provides stable support for screen cylinder 2, so that the whole device keeps balance when working, each screen cylinder 2 is used to limit cavity 21, cavity 21 is contained with asphalt material, and asphalt material refers to the stone material with asphalt wrapped and attached on surface after old asphalt concrete is broken, during the operation of device, multiple screen cylinders 2 can set corresponding quantity according to the fineness required for screening, so that the screening operation of asphalt material can be efficiently carried out, to ensure that asphalt material can be effectively classified after screening, screen hole 3 is provided on screen cylinder 2, screen hole 3 penetrates the side wall of each screen cylinder 2, screen hole 3 is used to screen the particles of asphalt material according to particle size, and the size and density of screen hole 3 can be adjusted according to specific application requirements, to ensure screening effect, multiple screen cylinders 2 are sleeved with shell 4 on outer periphery, shell 4 is coaxially arranged with multiple screen cylinders 2, shell 4 not only can protect multiple screen cylinders 2 from impact and influence of external environment, but also can prevent leakage of asphalt material during working process.
[0036] As Figures 1 to 5As shown, the stirring assembly 5 is in a spiral structure, which is installed in one of the screen cylinders 2, and the screen cylinder 2 and the stirring assembly 5 are in an integral structure, which can operate synchronously during the asphalt treatment process. The stirring assembly 5 stirs the asphalt material through rotary motion, effectively increases the flowability of the asphalt material, promotes the full contact and mutual collision and friction between the asphalts, so as to completely separate the stones and the asphalts. The support 6 is located between the base 1 and the shell 4, and plays a connecting and supporting role. One end of the support 6 is fixedly connected with the base 1 to ensure the stability of the whole device, and the other end is movably connected with the shell 4. In the assembled state, the shell 4 is connected with the support 6 through the rotating assembly 7, and the rotating assembly 7 is driven to make the shell 4 drive the plurality of screen cylinders 2 to rotate along the circumferential direction of the shell 4, so that the screening process of the asphalt is more flexible, and the rotating speed of the screen cylinder can be adjusted according to actual needs to achieve different screening effects, thereby improving the work efficiency.
[0037] In an example, continuing Figures 1 to 5 , the asphalt material is placed in the cavity 21 of the screen cylinder 2. After the device is started, the stirring assembly 5 drives the screen cylinder 2 to start rotating, and at the same time stirs the asphalt material and promotes the separation of the asphalt and the aggregate. With the synchronous rotation of the shell 4 and the screen cylinder 2, the shell 4 can prevent the asphalt material from leaking out, and ensure the high efficiency and cleanliness of the asphalt material treatment process. Under the action of centrifugal force, the asphalt material is pressed to the side wall of the screen cylinder 2, and is screened according to the size of the screen hole 3. The stripped asphalt material is collected according to the screening grade for subsequent use or processing.
[0038] In some embodiments, as Figures 1 to 7 shown, the plurality of screen cylinders 2 are in a cylindrical structure, and the side wall of the cylindrical structure is smooth without an included angle, so that the asphalt material rotates smoothly in the cylinder. The number of screen cylinders 2 can be set to three, five, etc., and can be set adaptively according to the number of required asphalt material grading. For example, the screen cylinder 2 is provided with three screen cylinders, including a first screen cylinder 22, a second screen cylinder 23 and a third screen cylinder 24. The first screen cylinder 22, the second screen cylinder 23 and the third screen cylinder 24 are coaxially arranged and sleeved with each other, which is compact in structure and effectively saves the occupied space of the device, while ensuring the improvement of the screening efficiency. The diameter of the first screen cylinder 22 is smaller than the diameter of the second screen cylinder 23, and the diameter of the second screen cylinder 23 is smaller than the diameter of the third screen cylinder 24, and they are connected through the connecting rod 8 to rotate synchronously, which is convenient for screening the asphalt material. In an example, as Figure 1As shown, in the assembled state, the first screen cylinder 22 is provided with a stirring assembly 5, which fully stirs the asphalt mixture through rotary motion, helps the asphalt to separate from the stone, and thus ensures the uniformity of the asphalt mixture flow and distribution and can accelerate the screening speed of the asphalt mixture, and can effectively avoid the accumulation and caking of the asphalt mixture in the screen cylinder 2, improve the work efficiency, the second screen cylinder 23 mainly further subdivides the asphalt mixture screened by the first screen cylinder 22, so that the asphalt mixtures of different particle sizes can be more accurately separated, and the third screen cylinder 24 is fixedly connected with the shell 4, which ensures that it will not displace or shake during operation, thereby enhancing the safety of the device as a whole. At the same time, the shell 4 effectively protects the screen cylinder 2, reduces the influence of the external environment on the screen cylinder 2, and further prolongs the service life of the screen cylinder 2.
[0039] In some embodiments, as shown in Figure 4 and Figure 5 , the screen holes 3 are in any one or more of a square structure, a circular structure, and a polygonal structure, as long as they can screen different grades of asphalt mixture, which will not be limited too much in this application. Among them, the first screen cylinder 22 has first screen holes 31, the second screen cylinder 23 has second screen holes 32, and the third screen cylinder 24 has third screen holes 33. The size of the first screen hole 31 is larger than that of the second screen hole 32, and the size of the second screen hole 32 is larger than that of the third screen hole 33. For example, the first screen hole 31 has a diameter of 10-15 mm, which can screen out coarse particles of stone, the second screen hole 32 has a diameter of 4-10 mm, which can screen out medium particles of stone, and the third screen hole 33 has a diameter of 0-4 mm, which can screen out fine particles of stone. During the operation of the device, the first screen cylinder 22 is mainly used to screen out large particles of stone, and the stirring assembly 5 of the first screen cylinder 22 can also strip the initial asphalt mixture and assist the first screen cylinder 22 to complete the preliminary screening function. The remaining stone falls into the second screen cylinder 23, which is mainly responsible for screening medium-sized stone particles from the asphalt mixture that has been stripped, further improving the accuracy of screening, and the third screen cylinder 24 screens out the remaining fine particles of stone and falls the powder or finer stone into the shell. The arrangement of multiple screen cylinders provides a multi-stage screening function, which can classify and process stone of different particle sizes to improve the screening accuracy, thereby making the stripping and screening process more efficient and avoiding the phenomenon of material retention and uneven screening.
[0040] In some embodiments, as shown in Figure 1 , a plurality of guide plates 9 are further included to enhance the separation and collection efficiency of the stone. The plurality of guide plates 9 are in a U-shaped structure, which not only increases the flow channel of the stone but also effectively reduces the leakage of the stone. Each guide plate 9 is fixed to one end of the first screen cylinder 22, the second screen cylinder 23, and the third screen cylinder 24, thereby forming an effective guide system. In the axial direction of the screen cylinder 2 (as shown in Figure 1The guide plate 9 extends towards opposite directions inside the cavity 21 in the y direction, so as to effectively separate and collect different grades of stone materials, thereby achieving higher screening accuracy and production efficiency.
[0041] In some embodiments, with continued reference to Figure 1 and Figure 2 , the bottom of the guide plate 9 is provided with a storage box 10, which is provided with a plurality of storage cavities 101, and the storage cavities 101 are clearly separated from each other. The storage cavities 101 are used to accommodate stone materials of different grades, and the same storage cavity is used to accommodate stone materials of the same grade, so that different grades of stone materials can be independently stored, avoiding the risk of mixing and damage, thereby facilitating centralized processing and subsequent use.
[0042] In some embodiments, as shown in Figures 1 to 7 , the rotating assembly 7 includes a rotating shaft 71 and a driving motor 72, the output end of the driving motor 72 is connected with the rotating shaft 71, and the rotating shaft 71 is installed on the support seat of the base 1, so as to have good stability and support force during operation, and the shell 4 is toothed with the rotating shaft 71, so as to ensure the smooth progress of the screening process. Turn on the driving motor 72 to drive the rotating shaft 71 to rotate along the circumferential direction of the rotating shaft 71, so as to be able to strip and screen the asphalt, thereby improving the work efficiency and accuracy.
[0043] In some embodiments, as shown in Figure 1 and Figure 7 , the supports 6 are located at both ends of the shell 4. In the assembled state, when the asphalt material is screened and stripped, the height of the supports 6 at both ends is adjusted, so that the supports 6 extend or contract up and down along the thickness direction of the base 1 (e.g., the z direction shown in Figure 7 ). At this time, the axis of the shell 4 is parallel to the extension length of the base 1, and the driving motor is turned on to drive the screen drum 2 to rotate and drive the stirring assembly 5 to rotate. At the same time, under the action of the stirring assembly 5, the asphalt material is stripped and falls into the corresponding screen drum 2 according to the grade to be screened. When the asphalt material is screened into different grades of stone materials, the positions of the screen drum 2 and the shell 4 are adjusted, so that the shell 4 is inclined relative to the base 1, so as to facilitate the screened stone materials to fall into the corresponding storage cavities 101 through the guide plate 9, for subsequent use and processing.
[0044] In some embodiments, with continued reference to Figure 1 and Figure 7The base 1 is provided with a limiting seat 11, the limiting seat 11 is rotatably connected with the shell 4 through a bearing, so that the limiting seat 11 can freely rotate within a certain range relative to the shell 4, thereby realizing flexible structural adjustment; in the assembled state, the shell 4 and the limiting seat 11 have a preset angle, the preset angle is 0°-60°, when the asphalt material is screened, the preset angle is 0°, so that the shell 4 and the screen cylinder 2 are parallel to the base 1, so as to facilitate screening and prevent asphalt material from leaking; when the screening is completed and needs to be collected, the preset angle is 50°, so that the shell 4 and the screen cylinder 2 are inclined to the base 1, so as to facilitate the stones in the screen cylinder 2 to flow into the corresponding storage cavity 101 of the storage box 10 through the guide plate 9, thereby ensuring the stability and reliability of the device, and further improving the overall operation flexibility and adaptability.
[0045] The working principle of the old asphalt mixture stripping and screening device of the present application is as follows:
[0046] As shown in Figures 1 to 7 , first, the asphalt material is placed in the cavity 21 of the first screen cylinder 22, after the device is started, the screen cylinder 2 and the stirring assembly 5 rotate at the same time, so that the asphalt material is stirred and rotated, and the separation of asphalt and stones is promoted; the shell 4 outside the screen cylinder 2 can prevent the asphalt material from leaking, ensuring the efficiency and cleanliness of the screening process; with the synchronous rotation of multiple screen cylinders 2, the asphalt material is pressed against the side wall of the screen cylinder 2 under the action of centrifugal force; while stirring, larger stone particles begin to be screened and stripped through the first screen hole 31 of the first screen cylinder 22; the preliminarily stripped stones are sent to the second screen cylinder; after entering the second screen cylinder 23, the remaining stone particles are further screened; the second screen hole 32 of the second screen cylinder 23 is relatively small, which can effectively separate medium-sized aggregates; finally, the remaining particles enter the third screen cylinder 24 for further screening of fine stones; the third screen hole 33 of the third screen cylinder 24 is the most fine, which is mainly used for screening the smallest stone particles or powders; since the third screen cylinder 24 is fixedly connected with the shell 4, the smallest stone particles or powders fall into the shell 4, and the entire device can maintain stability during rotation; at the same time, the protection function of the shell 4 can also ensure the safety and smoothness of the screening process; finally, by adjusting the inclination angle of the screen cylinder 2, the screened stones are collected in the corresponding storage cavity 101 of the storage box 10 through the guide plate 9 for subsequent use or centralized treatment.
[0047] It should be explained finally: the above described is only the preferred embodiment of the utility model, and is not used for limiting the utility model, although the utility model is described in detail with reference to the foregoing embodiment, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement is carried out to part of technical features. Any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model, should be contained in the scope of protection of the utility model claim.
Claims
1. A reclaimed asphalt mixture stripping and screening apparatus, characterized by, The utility model relates to a base, a plurality of screen drums are arranged on the base, each screen drum is used for limiting a cavity, the cavity contains asphalt material, a plurality of screen drums are arranged on the screen drum, the screen hole penetrates the side wall of each screen drum, the outer periphery of a plurality of screen drums is sleeved with an outer shell, the outer shell is used for protecting a plurality of screen drums, a stirring assembly is arranged in one of the screen drums, the screen drum and the stirring assembly are integrated, a support is arranged between the base and the outer shell, one end of the support is fixedly connected with the base, and the other end is movably connected with the outer shell, the outer shell is connected with the support through a rotating assembly in the assembled state, the rotating assembly is driven to rotate the outer shell and a plurality of screen drums along the circumferential direction of the outer shell. The plurality of screen drums include a first screen drum, a second screen drum and a third screen drum, the first screen drum, the second screen drum and the third screen drum are coaxially arranged and connected through a connecting rod, the first screen drum is provided with the stirring assembly, and the third screen drum is fixedly connected with the outer shell. The screen hole is in any one or more of a square structure, a circular structure and a polygonal structure, the first screen drum has a first screen hole, the second screen drum has a second screen hole, and the third screen drum has a third screen hole, the size of the first screen hole is larger than that of the second screen hole, and the size of the second screen hole is larger than that of the third screen hole. The plurality of guide plates are in a U-shaped structure, each guide plate is fixed to one end of the first screen drum, the second screen drum and the third screen drum, and extends towards the opposite direction of the cavity in the axial direction of the screen drum. The bottom of the guide plate is provided with a storage box, the storage box is provided with a plurality of storage cavities for accommodating different grades of stone, and the same storage cavity is used for accommodating the same grade of stone. The rotating assembly includes a rotating shaft and a driving motor, the output end of the driving motor is connected with the rotating shaft, the rotating shaft is installed on the base, the outer shell is in gear connection with the rotating shaft, the driving motor is driven to rotate the rotating shaft and the first screen drum, the second screen drum and the third screen drum along the circumferential direction of the support.
2. The old asphalt mixture stripping and screening device according to claim 1, characterized in that: The support is located at both ends of the outer shell, in the assembled state, the support extends or shrinks along the thickness direction of the base to make the outer shell parallel to the base, and / or the outer shell is inclined relative to the base. The base is provided with a limiting seat, the limiting seat is rotatably connected with the outer shell through a bearing, in the assembled state, the outer shell and the limiting seat have a preset angle, and the preset angle is 0-60 degrees.
3. A reclaimed asphalt mixture stripping and sizing device according to claim 2, wherein: 4. The old asphalt mixture stripping and screening device according to claim 2, characterized in that: 5. A reclaimed asphalt mixture stripping and sizing device according to claim 4, wherein: 6. The old asphalt mixture stripping and screening device according to claim 2, characterized in that: 7. A reclaimed asphalt pavement stripping and screening apparatus as defined in claim 6, wherein: 8. The old asphalt mixture stripping and screening device according to claim 1, characterized in that: